OpenTool
Free Online Tools for Everyday Tasks
Twenty-odd categories of handy tools — PDFs, images, calculators, converters and more. No account to make, no file uploads for most of it, and nothing to install.
Everything in one place
Browse by category
PDF Tools
Merge, split, compress, edit and convert PDF files
Image Tools
Resize, compress, edit and convert images
Convert
Convert Word, Excel, PowerPoint and HTML files to PDF
Utility Tools
QR codes, barcodes, compression and converters
Resume & Documents
Resume, CV, biodata and profile template makers
Unit Converters
Convert length, weight, volume, temperature and 150+ units
Date & Time
Age, date difference, time zones and countdown calculators
Typing Tests
Practice typing in English and regional Indian languages with WPM, CPM and accuracy scoring
Health & Fitness
BMI, calorie, heart rate and workout calculators
Govt Exam Toolkit
Exam photo & signature resizer, PDF compressor, background fixer and more — preset for UPSC, SSC, IBPS, RRB, NEET, JEE
Calculators
Finance, math, health, date, unit and computer calculators
Developer Tools
JSON, regex, JWT, hash and code utilities
Finance
EMI, loan, savings, retirement and business calculators
Computer & IT
Number base, hash, storage, bandwidth and network calculators
Math
Scientific, algebra, number theory and matrix calculators
Text Tools
Word counters, case converters, text to handwriting and reading aids
Built from your usage
Most used by you
Edit PDF
Edit text, add signatures and annotate PDFs right in your browser — free edit pdf without software, no install needed
Exam Photo Resizer
Resize and compress exam photos and signatures to exact portal specifications
Hindi Typing Test
Practice Hindi (Devanagari) typing and measure CPM and WPM with accuracy
Image to PDF
Convert one or more images into a PDF document
Marital Biodata Maker
Create beautiful marriage biodata with 12 designs
Passport Photo Maker
Make compliant passport and visa photos with printable 4×6 sheets
Photo & Signature Joiner
Combine a photo and signature into one image for forms
Resume Maker
Create professional resumes with ready templates
Tested and trusted
The crowd favourites
Compress PDF
Compress large pdf for email or shrink scanned files online - compress pdf to 100kb, 1mb or any target without losing quality
Merge PDF
Combine multiple PDF files into one document - a free merge pdf online for teams consolidating reports, with drag-to-reorder
Edit PDF
Edit text, add signatures and annotate PDFs right in your browser — free edit pdf without software, no install needed
Image to PDF
Convert one or more images into a PDF document
Resize Image
Resize images to exact dimensions or percentage
Compress Image
Reduce image file size while preserving quality
Remove Background
Automatically remove image backgrounds with AI
Convert Image
Convert images between different formats
Hot off the bench
Freshly added
Edit PDF
Edit text, add signatures and annotate PDFs right in your browser — free edit pdf without software, no install needed
Fill PDF Forms
Detect and fill PDF form fields with your data — free fill pdf forms online for business, HR and government paperwork
Scan to PDF
Turn scanned photos or camera shots into a PDF
Image to PDF
Convert one or more images into a PDF document
About that privacy promise
It's simple: we don't want your files. Most tools do everything on your device, so nothing ever gets sent anywhere. A few do need a server — the document converters (PDF↔Word, PDF↔Excel, Excel/Word/PowerPoint→PDF, PDF→PPT) — and those erase your file the moment the job finishes.
Free Online Tools
OpenTool is a free collection of 264+ browser-based utilities for everyday tasks — no account, no email, no watermarks and no usage limits. Everything runs in the tools section of this site, organised into categories like PDF Tools, Image Tools, document converters, unit converters and calculators.
PDF Tools
Work with PDF documents entirely in your browser: Compress PDF files for email, merge PDF files into one document, split a PDF by page range, or edit PDF text and annotations. You can also sign PDFs electronically and fill PDF forms without printing.
Image Tools
The image workspace covers Image Resizer, Image Compressor and Crop Image jobs, plus an AI Background Remover and a Passport Photo Maker that formats photos to official exam and visa sizes.
Converters & Calculators
Convert documents and images with Word to PDF, Excel to PDF, JPG to PDF, PDF to JPG and more. For numbers, use the EMI Calculator, Age Calculator, Unit Converter or the live currency converter.
Developer Tools
Daily-driver utilities for engineers: a JSON Formatter and validator, Base64 encoder, JWT decoder, regex tester and UUID generator.
Why Use OpenTool?
Privacy-first by default
Most tools process files entirely in your browser, so nothing is ever uploaded. The few server-side exceptions delete your file the moment processing finishes.
No installs, ever
Every tool runs in the browser on Windows, Mac, Linux, Chromebook, Android and iPhone. No app store downloads and no software to keep updated.
Built for agents too
Developers and AI agents can read any page as markdown via Accept: text/markdown, or start from /llms.txt and /developers.
Frequently Asked Questions
Are these tools really free?▾
Yes — every one of them, and there's no premium tier hiding anything. Merge, compress, resize, convert, whatever the tool does, you can do it as often as you like. The ads at the side are the whole business model.
Do I need an account?▾
No. There's no signup and no email address to hand over. Open a tool and it just works — that's the point.
Where do my files go?▾
Nowhere. Every public tool runs in your browser, so your files never leave your computer — merging, compressing, editing and even converting Word, Excel, PowerPoint or HTML files to PDF all happen locally on your device.
How is this different from other tool sites?▾
The short version: no accounts, no daily limits, no watermarks, and most things never touch a server. If you've been burned by a site that makes you wait for a download link or hits a paywall after one use, this is the opposite of that.
Will it work on my phone?▾
Yes — every tool is responsive and runs in the browser on Android and iPhone, from the typing tests to the exam photo resizers to the calculators. No app store, no install.
264
free tools
24
currencies in the converter
16
categories
100%
of tools run in your browser