Free Developer Tools That Run in Your Browser

Small things that answer one question and get out of the way — some we built, some we tested. The ones we built run entirely in your browser: nothing to install, no account, no upload.

They exist because we needed them ourselves while working on the free tools and APIs we write about here.

Tool runs here, on the page Review opens an article: what we tested, and what won

  • Paste any repository and see when it last shipped: last commit, last release, and whether the owner has archived it.

    Star counts only ever go up — they record how popular a project once was, not whether anyone still maintains it. Plenty of 40k-star projects have not tagged a release in over a year.

    Open the checker
  • Search every free tier we have verified — what you get, whether a card is required, and the date we last confirmed it.

    Free tiers move: allowances get halved, a card requirement appears, or a provider stops publishing limits. Every figure here carries the day it was checked, and links to the article it came from.

    Search the directory
  • The same application deployed to four free PHP hosts, with the live URLs so you can judge the speed yourself instead of taking ours.

    Four brands turn out to be two platforms. Two serve a certificate issued for someone else's hostname. Two re-encode every image you upload, which makes your files about a fifth larger than the ones you sent.

    See the measurements