HTTP Tools
Privacy-friendly developer utilities that run entirely in your browser
HTTPTools is a free collection of simple online tools for developers and everyday tasks. Everything runs client-side in the browser with no server-side processing and no uploads, so the data you paste stays on your machine.
The catalog is grouped by task. Time tools include a Unix epoch converter, timestamp-to-date, date and business-days calculators, age and duration calculators, a timezone converter, day-of-year, and a cron parser that explains expressions in plain English. Encoding tools cover Base64, URL encode/decode, a JWT decoder and a hash generator (MD5, SHA-1, SHA-256, SHA-384, SHA-512).
Text tools help clean up pasted content, remove HTML tags, convert HTML to Markdown and more, and the site also includes reference material and guides.
Highlights
- Runs fully in-browser, no uploads or server processing
- Unix timestamp and epoch conversion tools
- Date, business-days, age and duration calculators
- Timezone converter and cron expression parser
- Base64, URL encode/decode, JWT decoder, hash generator
- Text cleanup, HTML-to-Markdown and reference guides