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473 tools · no signup

Free online tools that run in your browser

Convert, format, generate, check and calculate — fast and private. Your files stay on your device whenever possible.

Popular tools

Image Compressor

Compress an Image

JSON Beautifier

Beautify minified JSON with 2 or 4 space indentation and see the parser error if it is invalid.

QR Code Generator

Create QR Codes

PDF to Word Converter

Extract the text of a PDF into a Word-openable .doc file.

Video Compressor

Compress a video to a smaller MP4 right in your browser.

Currency Converter

Convert an amount between ten major currencies using current reference exchange rates.

Password Generator

Create secure passwords

DNS Lookup

Look up A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records for any domain.

SSL Checker

Check whether a site's SSL/TLS certificate is valid, who issued it and when it expires.

IP Blacklist Check

Check whether an IPv4 address is listed on major spam and abuse DNS blacklists.

Security Headers Auditor

Check which common security headers a website sends.

Website Health Check

Run ten checks on any website at once: DNS, SSL, availability, security headers, SEO basics, reputation, domain registration, email authentication, link previews and robots.txt.

Word Count

Count words, characters, sentences, paragraphs and lines in any text.

Regex Tester

Test your Regular Expressions

Collections

All collections →

Website audit toolkit

17

Check a site’s health, security, technology and search basics in one place. Run them in order for a quick audit.

Privacy & security tools

14

See what your browser reveals, remove hidden data from photos, and create and test strong secrets — mostly without anything leaving your device.

Developer essentials

18

The formatters, converters and debuggers developers reach for daily.

Free image tools

15

Edit, convert, compress and inspect images directly from your browser.

Domain & DNS toolkit

11

Investigate a domain: who owns it, where it points, whether mail will be delivered, and whether it has a bad reputation.

Launch a website

13

The files and pages a new website needs before it goes live.

Browse by category

All 473 tools →

Media Tools

28

Audio Compressor · Audio Converter · Audio Fade In and Fade Out

Image Tools

61

Image Rotate · AVIF to JPG · AVIF to PNG

SEO & Web Tools

43

AMP Validator · Broken Link Checker · Canonical URL Generator

Document Converters

17

Add Page Numbers to PDF · Delete PDF Pages · Extract PDF Pages

Text Tools

47

Text Repeater · Add/Remove Line Numbers · AI Text Summarizer

Developer & Data Tools

88

.env File Converter · .gitignore Generator · Base32 Encoder & Decoder

Security & Privacy Tools

80

.env File Analyzer · AES-256 Encryption/Decryption · ASN.1 Decoder

Fun & Utilities

25

Virtual Coin Flip · Aim Trainer · Bubble Text Generator

Calculators

28

Age Calculator · Aspect Ratio Calculator · Between Dates Calculator

Network Tools

32

Analytics Tag Finder · ASN Lookup · CIDR & IP Range Toolkit

Unit Converters

24

Angle Converter · Area Converter · Capacitance Converter