GitHub Actions Generator
Generate a CI workflow with caching, a version matrix and the right permissions.
All Tools
Every one of our 1329 tools in one place — free, no sign-up, and all of them run inside your own browser.
1329 free tools
11 categories
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Fake Address Generator
Generate plausible addresses in the format each country actually uses.
Cron Expression Generator
Build a cron schedule from controls and see the next times it runs.
JavaScript Keycode Tester
Press any key and see event.key, event.code and the modifier state.
CSS Filter Generator
Stack CSS filters on a real image and copy the declaration.
CORS Header Generator
Generate correct CORS headers, and understand why the request was blocked.
CSP Generator
Build a Content-Security-Policy header directive by directive.
Nano ID Generator
Generate Nano IDs — shorter than a UUID, and URL-safe by design.
Random String Generator
Generate cryptographically random strings over any alphabet you choose.
File Checksum Calculator
Verify a download by computing its SHA-256 without uploading it anywhere.
String Byte Counter
Measure text in UTF-8 bytes, code points, UTF-16 units and graphemes.
Base58 Encoder & Decoder
Encode and decode Base58 in the Bitcoin, Ripple or Flickr alphabets.
JSON to Go Struct
Generate Go structs with json tags from a sample payload.
ROI Calculator
Return on investment, total and annualized.
Refinance Calculator
Whether refinancing pays, and how long it takes to break even.
Permutation & Combination Calculator
nPr, nCr, factorials and counting with or without repetition.
Binary Calculator
Binary arithmetic, bitwise operations and two's complement.
Distance Calculator
Distance from speed and time, or between two map coordinates.
Calories Burned Calculator
Calories burned by activity, using published MET values.
EMI Calculator
Equated monthly instalment with a principal and interest breakdown.
Least Common Multiple Calculator
LCM by prime factorisation, listing and the GCF shortcut.
Bandwidth Calculator
Download time, data usage and the speed you need.
Average Calculator
Find the mean, median, mode and range of any list of numbers.
Tint Image
Wash an image with a single colour at any strength.
Image Blur Tool
Blur a whole photo, or just the part you drag over.
Animated WebP Maker
Turn a set of frames into an animated WebP or GIF.
WebP to PNG Converter
Convert WebP files to PNG or JPG that anything can open.
Title Case Converter
Capitalise headlines properly using AP, Chicago, APA or MLA rules.
Hex to Text
Decode hexadecimal bytes back into readable text.
HTML Entity Decoder
Turn HTML entities back into the characters they represent.
Word Definition
Look up definitions for common English words, offline.
Shortest Word Finder
Find the shortest words in a text, filler included.
Character Counter without Spaces
Count characters with all whitespace excluded from the total.
Character Counter with Spaces
Count every character including spaces, tabs and line breaks.
CSV to JSON
Convert a CSV export into clean, typed JSON.
Image to Base64
Turn an image into a Base64 data URI ready to paste into CSS or HTML.
IP Subnet Calculator
Network, broadcast and host range from any CIDR block.
Target Audience Generator AI
Four genuinely different audience segments, with how to reach each.
Ad Headline Generator AI
Ad headlines under 40 characters, with counts, AI or instant.
Campaign Name Generator AI
Names for launches, sales and campaigns, AI or instant.
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