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Showing 116 of 116 tools
Percentage Calculator
Five percentage calculations in one place, with the answer explained in plain English.
Open toolBMI Calculator
Work out your body mass index in kilograms or pounds, and see what the number does and does not tell you.
Open toolAge Calculator
Turn a date of birth into an exact age in years, months and days - as of today or any date you choose.
Open toolDiscount Calculator
Find the sale price, the amount saved, or the discount percentage behind a price cut.
Open toolTip Calculator
Work out the tip, the total and what each person owes when the bill is split.
Open toolGPA Calculator
Add each course's grade and credit hours to get your credit-weighted GPA - letter grades or any numeric scale.
Open toolLoan Calculator
Find the monthly payment on a loan, and see how much of it is interest rather than principal.
Open toolEMI Calculator
Work out your equated monthly instalment, and how much of the total is interest.
Open toolCompound Interest Calculator
See how savings grow when interest earns interest - with or without regular contributions.
Open toolVAT / GST Calculator
Add tax to a price, or pull it back out of a price that already includes it - using the right tax name and currency for your country.
Open toolUK VAT Calculator
Add or remove UK VAT - 20% standard rate pre-filled, with 5% and 0% one tap away.
Open toolIreland VAT Calculator
Add or remove Irish VAT - 23% standard rate pre-filled, with every reduced rate one tap away.
Open toolSouth Africa VAT Calculator
Add or remove South African VAT - 15% standard rate pre-filled.
Open toolUAE VAT Calculator
Add or remove UAE VAT - 5% standard rate pre-filled, in AED.
Open toolAustralia GST Calculator
Add or remove Australian GST - 10% rate pre-filled, both directions.
Open toolSingapore GST Calculator
Add or remove Singapore GST - 9% rate pre-filled, in SGD.
Open toolUAE Gratuity Calculator
Work out UAE end-of-service gratuity from the last basic salary and years of service, with the 21-day and 30-day rates split out.
Open toolGCC VAT Calculator
Pick a GCC country and add or remove VAT at its current standard rate - UAE, Saudi Arabia, Bahrain and Oman, all in one place.
Open toolScientific Calculator
Type a whole expression and get the answer, with brackets and order of operations respected.
Open toolUnit Converter
Convert between metric and imperial units across eight categories, instantly.
Open toolQR Code Generator
Create a QR code for a link, Wi-Fi network or contact card and download it as PNG or SVG.
Open toolBarcode & QR Scanner
Upload a photo or screenshot of a barcode or QR code and get the decoded value.
Open toolJPG to PDF
Combine images into a single PDF, in the order you choose, without uploading anything.
Open toolBank Statement to Excel
Turn your bank or credit card statement into a clean spreadsheet or document of transactions - processed in your browser.
Open toolInvoice Generator
Fill in the details, watch the invoice build itself, then download a clean PDF.
Open toolQuotation Generator
Put together a priced quote with a validity date and download it as a PDF.
Open toolReceipt Generator
Produce a clean receipt confirming what was paid, and download it as a PDF.
Open toolBase64 Encoder / Decoder
Encode text to Base64 or decode it back, including Unicode and emoji.
Open toolJSON Formatter
Beautify, minify and validate JSON, with real error messages.
Open toolHash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes as you type.
Open toolPassword Generator
Create strong random passwords that never leave your browser.
Open toolJWT Decoder
Paste a JWT to see its header and payload, check its expiry, and optionally verify its signature - entirely in your browser.
Open toolCase Converter
Switch text between upper, lower, title, sentence and programmer cases.
Open toolRemove Extra Spaces
Strip double spaces, stray tabs and blank lines out of pasted text.
Open toolLorem Ipsum Generator
Generate placeholder text by paragraph, sentence or exact word count.
Open toolText Diff Checker
Compare two versions of a text and see precisely what changed.
Open toolWords to Pages Calculator
Convert a word count to pages, or a page count to words, for your actual formatting.
Open toolImage Compressor
Shrink an image by quality or to an exact target size in KB.
Open toolImage Resizer
Resize to exact pixels or a percentage, without distorting the image.
Open toolPNG to JPG
Convert a PNG to a smaller JPG, with transparency handled properly.
Open toolRemove EXIF Data
See what is hidden inside a photo - camera details, date and GPS location - then strip it before you share the file.
Open toolCompress PDF
Shrink a PDF by recompressing its images, leaving the text untouched.
Open toolCompress PDF to 200KB
Aim a PDF at 200 KB - the exact limit most exam, visa and government portals ask for.
Open toolCompress PDF to 100KB
Aim a PDF at 100 KB - a tight limit some exam and government portals still ask for.
Open toolPDF to Excel
Extract tables from a PDF into a real spreadsheet with proper columns.
Open toolPDF Password Protect & Remove
Add a password so a PDF cannot be opened without it, or take one off a PDF you already have the password for.
Open toolCompare Two PDFs
See exactly what changed between two versions of a PDF, line by line.
Open toolFill a PDF Form
Fill in a PDF's actual form fields - text, checkboxes, radio buttons and dropdowns - and download the completed form.
Open toolVLOOKUP Online
Bring columns from one sheet into another, without writing a formula.
Open toolDuplicate Finder
Find duplicate rows by whichever columns actually define a duplicate.
Open toolSee What Is in My File
See what is actually in a spreadsheet before you rely on it.
Open toolMatch Similar Names
Match records whose names never quite agree between two systems.
Open toolFind Similar Records
Find the duplicates that an exact match will never catch.
Open toolCompare Spreadsheets
See what changed between two versions of the same data.
Open toolData Cleaner
Tidy a spreadsheet, and see exactly what changed, with real before-and-after examples.
Open toolCheck Two Systems Agree
Reconcile two systems and see exactly where they disagree.
Open toolCSV to Excel
Convert CSV to Excel the way it should work - leading zeros, long IDs and accented text all survive.
Open toolCSV Delimiter Converter
Switch a CSV from one delimiter to another without breaking quoted fields.
Open toolData Workspace
Profile, clean, match, compare and reconcile spreadsheets on one screen - without re-uploading between steps.
Open toolOrganise PDF
Reorder, rotate, duplicate and delete pages on a visual board of thumbnails.
Open toolPDF Metadata Editor
Read and change the title, author and other document properties.
Open toolPDF Inspector
Page sizes, rotation, text, images and whether the document is a scan.
Open toolPDF Workspace
Sign, watermark, organize and compress one PDF, one screen at a time - without re-uploading between steps.
Open toolOCR Text Extractor
Upload an image or a scanned PDF and get real, selectable text back - processed on your own device.
Open toolOCR to Word
A scan or a photo of a page, recognized and rebuilt as a real, editable Word document - processed on your own device.
Open toolOCR to Excel
A photo or scan of a table, recognized and rebuilt as a real spreadsheet with proper rows and columns - processed on your own device.
Open toolAI Context Window Calculator
Calculate how much context your prompt, conversation and documents need, and whether they fit in the model’s context window.
Open toolAI Cache Savings Calculator
Work out how much prompt caching cuts your AI input bill, including cache-write costs and cache misses.
Open toolAI Batch Cost Calculator
Price a large AI job through a batch API and see what it saves over sending the same requests in real time.
Open toolAI Automation Cost Calculator
Add up everything an AI workflow really costs each month, not just the tokens, and see whether the time it saves pays for it.
Open toolAI Inference Cost Calculator
Turn token counts and per-million prices into cost per request, per month and per year for an LLM API.
Open toolAI OCR Cost Calculator
Work out what OCR plus AI extraction costs per page, per document and per month, including the people who check it.
Open toolAI GPU Requirement Calculator
Estimate how much GPU memory a model needs for inference or fine-tuning, and which class of GPU that points to.
Open toolAI Image VRAM Calculator
Estimate how much GPU memory an image generation workflow needs, and what it takes to run it on a smaller card.
Open toolAPI Rate Limit Calculator
Convert a rate limit between time windows, check your request rate against it, and size the limit your users actually need.
Open toolAPI Response Size Calculator
Estimate how big each API response is, how much compression saves, and how much data and bandwidth your traffic uses.
Open toolJSON Size Calculator
Paste or load JSON to see its exact size in bytes - as written, minified, pretty-printed and gzipped - and whether it is valid.
Open toolJWT Expiry Calculator
Decode a JWT’s time claims to see when it was issued, when it becomes valid, when it expires and how long it has left.
Open toolCron Expression Translator
Type a cron expression to see what it means in plain English, what each field matches and exactly when it will run next.
Open toolPDF Metadata Viewer
See the hidden properties inside a PDF - who made it, with what software, when, and whether it is encrypted - without uploading it.
Open toolPDF Page Counter
Drop one PDF or a hundred and see how many pages each has, plus the total - in seconds, without uploading anything.
Open toolPDF Word Counter
Count the words and characters in a PDF, page by page, and see which pages have no text to count - all without uploading the file.
Open toolPDF File Size Calculator
Estimate a PDF’s size before you make it, with the formula and an honest range - or drop in a real PDF to see its actual size per page.
Open toolSD Card Recording Time Calculator
Find out how long you can record on an SD or microSD card at your camera’s bitrate.
Open tool4K Video Storage Calculator
Plan storage for a 4K shoot: per hour, per day, per week and per month, across every camera.
Open tool8K Video Storage Calculator
Work out how many terabytes an 8K shoot needs - per hour, per day and across the whole project.
Open toolVideo Recording Time Calculator
Turn free storage and a bitrate into recording time - with every step of the formula shown.
Open toolVideo Storage Calculator
Pick a resolution and duration (or a storage size) and see the other side of the equation.
Open toolGame Storage Calculator
Check whether your games fit, how much space is left, and which SSD size to buy.
Open toolSteam Download Time Calculator
See how long a Steam download will take at your connection speed - and read Steam’s MB/s figure correctly.
Open toolPS5 Download Time Calculator
Estimate PS5 download times from the game’s size and your connection speed.
Open toolXbox Download Time Calculator
Estimate how long an Xbox game or update will take to download on your connection.
Open toolGaming Data Usage Calculator
Estimate how much data your gaming uses each month - online play, voice chat, cloud streaming and downloads.
Open toolWhatsApp Data Usage Calculator
Estimate your WhatsApp data use from how much you message, call and share each day.
Open toolZoom Data Usage Calculator
Estimate how much data your Zoom meetings use, and how much bandwidth they need.
Open toolSpeaking Time Calculator
Work out how long a speech, presentation or script takes to say aloud, and how many words fit your time slot.
Open toolLTV:CAC Calculator
Work out what a customer is worth over their lifetime, how that compares with what it cost to win them, and how long payback takes.
Open toolFreelance Project Cost Calculator
Turn your hours, costs and buffers into a project price that still hits your profit margin after platform and payment fees.
Open toolSalary Increase Calculator
Work out a raise percentage, a new salary, or what several raises in a row actually add up to.
Open toolVSThiran is a free online toolbox. There are 116 tools here at the moment, grouped into 13 categories, and all of them work now - there is no account, no trial, no watermark and no daily limit.
Everything runs in your browser rather than on a server. Your file is opened, changed and saved entirely on your own device, so it is never transmitted, never queued and never stored by anyone else. There is no upload wait and no file-size ceiling imposed from outside.
The tools are grouped by the situation you are in rather than by the technology behind them, because people usually arrive with a task - "split this PDF", "work out this percentage", "send an invoice" - rather than a category in mind.
Every tool on VSThiran, by category
All 116 of them are live and free to use now. There is no account, no trial and no watermark, and the tools that open your files do the work in your browser rather than on a server.
Calculators · 20 tools
Percentages, loans, EMI, BMI and everyday maths.
- Percentage Calculator — Five percentage calculations in one place, with the answer explained in plain English.
- BMI Calculator — Work out your body mass index in kilograms or pounds, and see what the number does and does not tell you.
- Age Calculator — Turn a date of birth into an exact age in years, months and days - as of today or any date you choose.
- Discount Calculator — Find the sale price, the amount saved, or the discount percentage behind a price cut.
- Tip Calculator — Work out the tip, the total and what each person owes when the bill is split.
- GPA Calculator — Add each course's grade and credit hours to get your credit-weighted GPA - letter grades or any numeric scale.
- Loan Calculator — Find the monthly payment on a loan, and see how much of it is interest rather than principal.
- EMI Calculator — Work out your equated monthly instalment, and how much of the total is interest.
- Compound Interest Calculator — See how savings grow when interest earns interest - with or without regular contributions.
- VAT / GST Calculator — Add tax to a price, or pull it back out of a price that already includes it - using the right tax name and currency for your country.
- UK VAT Calculator — Add or remove UK VAT - 20% standard rate pre-filled, with 5% and 0% one tap away.
- Ireland VAT Calculator — Add or remove Irish VAT - 23% standard rate pre-filled, with every reduced rate one tap away.
- South Africa VAT Calculator — Add or remove South African VAT - 15% standard rate pre-filled.
- UAE VAT Calculator — Add or remove UAE VAT - 5% standard rate pre-filled, in AED.
- Australia GST Calculator — Add or remove Australian GST - 10% rate pre-filled, both directions.
- Singapore GST Calculator — Add or remove Singapore GST - 9% rate pre-filled, in SGD.
- UAE Gratuity Calculator — Work out UAE end-of-service gratuity from the last basic salary and years of service, with the 21-day and 30-day rates split out.
- GCC VAT Calculator — Pick a GCC country and add or remove VAT at its current standard rate - UAE, Saudi Arabia, Bahrain and Oman, all in one place.
- Scientific Calculator — Type a whole expression and get the answer, with brackets and order of operations respected.
- Salary Increase Calculator — Work out a raise percentage, a new salary, or what several raises in a row actually add up to.
PDF Tools · 30 tools
Merge, split, compress and convert PDFs on your device.
- JPG to PDF — Combine images into a single PDF, in the order you choose, without uploading anything.
- PDF to JPG — Render each page of a PDF as an image and download the ones you need.
- Merge PDF — Combine several PDFs into one file, in the order you choose.
- Split PDF — Extract a page range from a PDF, or split it into individual pages.
- PDF to PNG — Render each page of a PDF as a lossless PNG image.
- Compress PDF — Shrink a PDF by recompressing its images, leaving the text untouched.
- Compress PDF to 200KB — Aim a PDF at 200 KB - the exact limit most exam, visa and government portals ask for.
- Compress PDF to 100KB — Aim a PDF at 100 KB - a tight limit some exam and government portals still ask for.
- PDF to Word — Turn a PDF into an editable Word document, with tables and images.
- PDF to Text — Pull the words out of a PDF as plain text or structured Markdown.
- PDF to Excel — Extract tables from a PDF into a real spreadsheet with proper columns.
- PDF Password Protect & Remove — Add a password so a PDF cannot be opened without it, or take one off a PDF you already have the password for.
- Compare Two PDFs — See exactly what changed between two versions of a PDF, line by line.
- Fill a PDF Form — Fill in a PDF's actual form fields - text, checkboxes, radio buttons and dropdowns - and download the completed form.
- Organise PDF — Reorder, rotate, duplicate and delete pages on a visual board of thumbnails.
- Delete PDF Pages — Remove the pages you do not want and keep everything else.
- Extract PDF Pages — Keep only the pages you choose, as a new PDF.
- Rotate PDF — Turn pages that were scanned sideways or upside down.
- Watermark PDF — Stamp text across the pages, at the size and angle you choose.
- Add Page Numbers — Number the pages, starting wherever you need.
- Sign PDF — Draw or type a signature and place it on a page.
- Edit PDF Text — Click a line of text on the page and change it.
- PDF Metadata Editor — Read and change the title, author and other document properties.
- PDF Inspector — Page sizes, rotation, text, images and whether the document is a scan.
- Extract PDF Images — Pull the pictures out of a document as PNG files.
- PDF Workspace — Sign, watermark, organize and compress one PDF, one screen at a time - without re-uploading between steps.
- PDF Metadata Viewer — See the hidden properties inside a PDF - who made it, with what software, when, and whether it is encrypted - without uploading it.
- PDF Page Counter — Drop one PDF or a hundred and see how many pages each has, plus the total - in seconds, without uploading anything.
- PDF Word Counter — Count the words and characters in a PDF, page by page, and see which pages have no text to count - all without uploading the file.
- PDF File Size Calculator — Estimate a PDF’s size before you make it, with the formula and an honest range - or drop in a real PDF to see its actual size per page.
Data Tools · 11 tools
Match, clean, compare and profile spreadsheets.
- VLOOKUP Online — Bring columns from one sheet into another, without writing a formula.
- Duplicate Finder — Find duplicate rows by whichever columns actually define a duplicate.
- See What Is in My File — See what is actually in a spreadsheet before you rely on it.
- Match Similar Names — Match records whose names never quite agree between two systems.
- Find Similar Records — Find the duplicates that an exact match will never catch.
- Compare Spreadsheets — See what changed between two versions of the same data.
- Data Cleaner — Tidy a spreadsheet, and see exactly what changed, with real before-and-after examples.
- Check Two Systems Agree — Reconcile two systems and see exactly where they disagree.
- CSV to Excel — Convert CSV to Excel the way it should work - leading zeros, long IDs and accented text all survive.
- CSV Delimiter Converter — Switch a CSV from one delimiter to another without breaking quoted fields.
- Data Workspace — Profile, clean, match, compare and reconcile spreadsheets on one screen - without re-uploading between steps.
OCR · 3 tools
Extract text from images and scanned PDFs, on your own device.
- OCR Text Extractor — Upload an image or a scanned PDF and get real, selectable text back - processed on your own device.
- OCR to Word — A scan or a photo of a page, recognized and rebuilt as a real, editable Word document - processed on your own device.
- OCR to Excel — A photo or scan of a table, recognized and rebuilt as a real spreadsheet with proper rows and columns - processed on your own device.
Business Tools · 5 tools
Invoices, quotations and receipts as proper A4 PDFs.
- Invoice Generator — Fill in the details, watch the invoice build itself, then download a clean PDF.
- Quotation Generator — Put together a priced quote with a validity date and download it as a PDF.
- Receipt Generator — Produce a clean receipt confirming what was paid, and download it as a PDF.
- LTV:CAC Calculator — Work out what a customer is worth over their lifetime, how that compares with what it cost to win them, and how long payback takes.
- Freelance Project Cost Calculator — Turn your hours, costs and buffers into a project price that still hits your profit margin after platform and payment fees.
Text Tools · 8 tools
Count, compare, clean up and convert text.
- Word Counter — Count words, characters and reading time as you type.
- Character Counter — Count characters with and without spaces, live as you type.
- Case Converter — Switch text between upper, lower, title, sentence and programmer cases.
- Remove Extra Spaces — Strip double spaces, stray tabs and blank lines out of pasted text.
- Lorem Ipsum Generator — Generate placeholder text by paragraph, sentence or exact word count.
- Text Diff Checker — Compare two versions of a text and see precisely what changed.
- Words to Pages Calculator — Convert a word count to pages, or a page count to words, for your actual formatting.
- Speaking Time Calculator — Work out how long a speech, presentation or script takes to say aloud, and how many words fit your time slot.
Image Tools · 5 tools
Compress, resize and convert images without uploading.
- Image Compressor — Shrink an image by quality or to an exact target size in KB.
- Image Resizer — Resize to exact pixels or a percentage, without distorting the image.
- JPG to PNG — Convert a JPG into a lossless PNG, entirely in your browser.
- PNG to JPG — Convert a PNG to a smaller JPG, with transparency handled properly.
- Remove EXIF Data — See what is hidden inside a photo - camera details, date and GPS location - then strip it before you share the file.
AI Tools · 8 tools
Token costs, context windows, caching, batching and GPU memory.
- AI Context Window Calculator — Calculate how much context your prompt, conversation and documents need, and whether they fit in the model’s context window.
- AI Cache Savings Calculator — Work out how much prompt caching cuts your AI input bill, including cache-write costs and cache misses.
- AI Batch Cost Calculator — Price a large AI job through a batch API and see what it saves over sending the same requests in real time.
- AI Automation Cost Calculator — Add up everything an AI workflow really costs each month, not just the tokens, and see whether the time it saves pays for it.
- AI Inference Cost Calculator — Turn token counts and per-million prices into cost per request, per month and per year for an LLM API.
- AI OCR Cost Calculator — Work out what OCR plus AI extraction costs per page, per document and per month, including the people who check it.
- AI GPU Requirement Calculator — Estimate how much GPU memory a model needs for inference or fine-tuning, and which class of GPU that points to.
- AI Image VRAM Calculator — Estimate how much GPU memory an image generation workflow needs, and what it takes to run it on a smaller card.
Developer Tools · 10 tools
JSON, Base64, hashes and strong passwords.
- Base64 Encoder / Decoder — Encode text to Base64 or decode it back, including Unicode and emoji.
- JSON Formatter — Beautify, minify and validate JSON, with real error messages.
- Hash Generator — Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes as you type.
- Password Generator — Create strong random passwords that never leave your browser.
- JWT Decoder — Paste a JWT to see its header and payload, check its expiry, and optionally verify its signature - entirely in your browser.
- API Rate Limit Calculator — Convert a rate limit between time windows, check your request rate against it, and size the limit your users actually need.
- API Response Size Calculator — Estimate how big each API response is, how much compression saves, and how much data and bandwidth your traffic uses.
- JSON Size Calculator — Paste or load JSON to see its exact size in bytes - as written, minified, pretty-printed and gzipped - and whether it is valid.
- JWT Expiry Calculator — Decode a JWT’s time claims to see when it was issued, when it becomes valid, when it expires and how long it has left.
- Cron Expression Translator — Type a cron expression to see what it means in plain English, what each field matches and exactly when it will run next.
Video & Storage · 5 tools
Recording time, card capacity and 4K/8K storage planning.
- SD Card Recording Time Calculator — Find out how long you can record on an SD or microSD card at your camera’s bitrate.
- 4K Video Storage Calculator — Plan storage for a 4K shoot: per hour, per day, per week and per month, across every camera.
- 8K Video Storage Calculator — Work out how many terabytes an 8K shoot needs - per hour, per day and across the whole project.
- Video Recording Time Calculator — Turn free storage and a bitrate into recording time - with every step of the formula shown.
- Video Storage Calculator — Pick a resolution and duration (or a storage size) and see the other side of the equation.
Gaming & Internet · 7 tools
Download times, game storage and data usage for games and calls.
- Game Storage Calculator — Check whether your games fit, how much space is left, and which SSD size to buy.
- Steam Download Time Calculator — See how long a Steam download will take at your connection speed - and read Steam’s MB/s figure correctly.
- PS5 Download Time Calculator — Estimate PS5 download times from the game’s size and your connection speed.
- Xbox Download Time Calculator — Estimate how long an Xbox game or update will take to download on your connection.
- Gaming Data Usage Calculator — Estimate how much data your gaming uses each month - online play, voice chat, cloud streaming and downloads.
- WhatsApp Data Usage Calculator — Estimate your WhatsApp data use from how much you message, call and share each day.
- Zoom Data Usage Calculator — Estimate how much data your Zoom meetings use, and how much bandwidth they need.
Converters · 1 tool
Length, weight, temperature, volume, speed and more.
- Unit Converter — Convert between metric and imperial units across eight categories, instantly.
Utilities · 3 tools
Everyday generators that do not belong anywhere else.
- QR Code Generator — Create a QR code for a link, Wi-Fi network or contact card and download it as PNG or SVG.
- Barcode & QR Scanner — Upload a photo or screenshot of a barcode or QR code and get the decoded value.
- Bank Statement to Excel — Turn your bank or credit card statement into a clean spreadsheet or document of transactions - processed in your browser.
What "free" means here
Free means free to use, with no account and no feature held back behind a paywall. Because the tools run in your browser rather than on our infrastructure, there is no per-use cost to recover and no reason to gate them.
It also means the privacy claims are structural rather than promises. The PDF and document tools contain no upload code at all - there is no request that could carry your file anywhere, because none exists in the first place.
What these tools cannot do
Being clear about the limits is more useful than pretending there are none.
- Password-protected PDFs cannot be opened, and there is no tool here to add or remove a password.
- Converting a PDF page to an image turns its text into pixels, so the result is no longer selectable or searchable.
- The document tools produce PDFs, not editable Word or Excel originals, and PDF to Word recovers text and structure rather than a perfect visual copy.
- Very large files can be slow or run out of memory on an older phone, because the work happens on your device rather than on a server.
Frequently asked questions
How many tools does VSThiran have?
116 at the moment, across 13 categories: calculators, PDF tools, spreadsheet and data tools, text tools, image tools, developer utilities, business document generators, unit conversion and a QR code generator. Every one of them is live and usable now - this page lists all of them.
Are these tools free?
Yes - all of them, with no sign-up, no watermark and no limit on file size or how often you use them.
Are my files uploaded anywhere?
No. Every tool that opens a file reads and writes it inside your browser, so nothing is transmitted to VSThiran and no copy is kept on a server.
What PDF tools are there?
30: merge, split, organise pages, delete pages, extract pages, rotate, watermark, add page numbers, sign, edit metadata, inspect, extract images, compress, and conversions between PDF and Word, Excel, JPG and PNG. They share one open document, so several operations need only a single upload.
Do I need to install anything?
No. These are web pages, not downloads. They work in any current browser on a phone, tablet or computer.
Do I need an account?
No. There is no sign-up, no email required and no login anywhere on the site.
Other free tools on VSThiran
Calculators
Percentages, loans, EMI, BMI and everyday maths.
PDF Tools
Merge, split, compress and convert PDFs on your device.
Data Tools
Match, clean, compare and profile spreadsheets.
OCR
Extract text from images and scanned PDFs, on your own device.
Business Tools
Invoices, quotations and receipts as proper A4 PDFs.
Text Tools
Count, compare, clean up and convert text.
Image Tools
Compress, resize and convert images without uploading.
AI Tools
Token costs, context windows, caching, batching and GPU memory.
Developer Tools
JSON, Base64, hashes and strong passwords.
Video & Storage
Recording time, card capacity and 4K/8K storage planning.
Gaming & Internet
Download times, game storage and data usage for games and calls.
Converters
Length, weight, temperature, volume, speed and more.
Utilities
Everyday generators that do not belong anywhere else.
Guides
Step-by-step for jobs that take several tools, like cleaning a spreadsheet or editing a PDF.
Articles
In-depth explanations of one problem at a time, each linking back to the tool that solves it.