Tools / Developer
Developer
Format JSON, sketch SQL, convert cURL to fetch, and parse user-agents—everyday developer utilities that run in the browser.
Developer
JSON formatter
Beautify, minify, and validate JSON in the browser.
Open toolDeveloperSQL query builder
Create SELECT, INSERT, UPDATE, and DELETE statements with a simple form.
Open toolDevelopercURL to fetch
Turn a simple cURL command into a JavaScript fetch snippet.
Open toolWebUser-Agent parser
Best-effort breakdown of a browser user-agent string.
Open toolDataJSON to CSV
Turn a JSON array into CSV for Excel or Google Sheets.
Open toolWebrobots.txt generator
Build a valid robots.txt with sitemap line and AI-bot blocking.
Open toolWebSchema validator
Sanity-check JSON-LD structured data before you publish it.
Open toolDeveloperCron parser
Translate a 5-field cron expression into plain English.
Open toolOther categories
- Text & data — 8 tools
- Encoding & web — 3 tools
- Security & crypto — 4 tools
- Media & design — 7 tools
- Numbers & time — 7 tools
- Percentages & money — 8 tools
- Everyday — 4 tools
Prefer reading first? See our guides.