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Popular Tools

The tools our visitors reach for most.

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Merge PDF
Combine PDF files into one document, choosing which pages to take and where they go.
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Compress PDF
Reduce PDF file size while keeping quality high.
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JPG to PDF
Turn one or many images into a single PDF document.
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PDF to Word
Extract a PDF into an editable Word document.
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Sign PDF
Draw and place your signature on a PDF.
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Compress Image
Reduce JPG, PNG and WebP file size with adjustable quality, on device.
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Resize Image
Resize images to exact pixel dimensions or by percentage.
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Image Converter
Convert between PNG, JPG, WebP and BMP in one place.

Featured Categories

Explore 135+ tools organised into 13 categories.

PDF
31 tools
Image
14 tools
Video
3 tools
Audio
5 tools
Text
12 tools
Developer
18 tools
SEO
10 tools
Finance
8 tools
Utilities
12 tools
Calculators
5 tools
Documents
4 tools
AI
3 tools
Converters
10 tools
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Trending Now

What people are using this week.

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PDF to JPG
Convert each page of a PDF into a high-quality JPG image.
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Edit PDF
Add text and notes anywhere on your PDF.
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Convert to WebP
Convert images to modern, lightweight WebP.
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Markdown Preview
Write Markdown and preview the rendered HTML live.
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JWT Decoder
Decode and inspect JSON Web Token header and payload.
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Schema Markup Generator
Generate JSON-LD structured data for rich results.
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SIP Calculator
Estimate returns on a Systematic Investment Plan.
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Timestamp Converter
Convert between Unix timestamps and human dates.

Recently Added

Fresh tools, just shipped.

Roman Numeral Converter
Convert between numbers and Roman numerals.
Number to Words
Convert numbers into written words.
Time Converter
Convert seconds, minutes, hours, days and weeks.
Volume Converter
Convert litres, gallons, cups and millilitres.
Area Converter
Convert square metres, acres, hectares and more.
Speed Converter
Convert km/h, mph, m/s and knots.
Popular
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin.
Weight Converter
Convert kilograms, pounds, ounces and grams.

From the Blog

Guides, tips and deep-dives.

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PDF

How to Redact a PDF Properly (and Why Black Boxes Usually Fail)

Drawing a black rectangle over text in a PDF hides nothing, the words underneath are still there and can be copied straight out. Here is how redaction actually works, what US and UK rules require, and how to remove the content for good.

Jul 27, 2026
Image

How to Compress Images Without Losing Quality

Learn the difference between lossy and lossless compression and how to shrink images by up to 80% while keeping them crisp.

Jun 28, 2026
Image

PNG vs JPG: Which Format Should You Use?

A clear, practical guide to choosing between PNG and JPG for the web, print and everything in between.

Jun 20, 2026

Frequently Asked Questions

Is Toolzy really free?
Yes. Every tool on Toolzy is completely free to use with no sign-up, no watermarks and no hidden limits.
Are my files safe?
Most of our tools, including all image, text, developer and calculator tools, run entirely inside your browser. Your files never leave your device. The few tools that need a server delete your files immediately after processing.
Do I need to install anything?
No. Toolzy runs in any modern browser on desktop and mobile. There is nothing to download or install.
Can I use Toolzy on my phone?
Absolutely. The entire platform is designed mobile-first and works beautifully on phones and tablets.
How many free online tools are there?
We currently offer 135+ free online tools across 13 categories — including PDF, image, audio, video, text, developer, SEO, finance and calculator tools — and we add more every week toward our goal of 1000+.
What kinds of tools does Toolzy offer?
Toolzy offers tools for PDF (merge, split, compress, convert), images (compress, resize, convert, crop), audio and video, text and writing, developers (JSON, Base64, hashing, formatters), SEO, finance and everyday calculators — all in one place.