AltRepo tools: free online utilities, no signup
An alternative repository of free online tools that run entirely in your browser. Your files are processed locally and never sent to a server — open a tool, get your thing done, close the tab.
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75 tools
0 sign-ups
0 uploads
8 categories
▸ browse by category
color
Pick, check, and extract accessible palettes and contrast.
4 toolsexplore →
dev tools
Formatters, validators, and data converters for developers.
10 toolsexplore →
hash & crypto
Generate hashes, verify checksums, and hash passwords locally.
8 toolsexplore →
text tools
Count, convert, compare, and clean text in your browser.
7 toolsexplore →
calculators
Everyday math: mortgages, loans, percentages and interest.
23 toolsexplore →
image
Create QR codes and strip or inspect photo metadata offline.
3 toolsexplore →
social
Safe zones, timestamps, and thumbnails for content creators.
5 toolsexplore →
security & privacy
Share secrets safely and scrub metadata before you post.
explore →
games
A growing collection of fast, offline browser games.
15 toolsexplore →
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