astrina
No account needed for most of them

All 148 utilities

77 of them run entirely in your browser — nothing is uploaded and nothing is counted.

148utilities
77run in your browser
32also over the API
9categories

DevOps 24

Convert, validate and inspect. Nothing is uploaded.

JSON formatterFormat and validate JSON. ⚡ Regex testerTest regular expressions with groups. ⚡ JWT decoderDecode and inspect a JWT. Stays local. ⚡ Diff checkerCompare two texts line by line. ⚡ .htaccess generatorApache rules for redirects and caching. ⚡ Nginx generatorA server block with TLS and compression. ⚡ Docker Compose builderCompose a stack and copy the YAML. ⚡ Code minifierMinify CSS and JavaScript. ⚡ PHP formatter and syntax checkFormats PHP and reports syntax errors. Nothing is executed — see the note on the tools page. ⚡ PHP versionDetect the PHP version a server reveals. API Markdown previewLive Markdown rendering. ⚡ Cron generatorBuild a schedule and read it back. ⚡ CSV ↔ JSONConvert between CSV and JSON. ⚡ YAML ↔ JSONConvert between YAML and JSON. ⚡ SQL formatterFormat and minify SQL. ⚡ XML formatterFormat, minify and validate XML. ⚡ URL parserSplit a URL into its components. ⚡ Escape / unescapeHTML, JSON, JS, URL and Base64. ⚡ JSON Schema validatorValidate a document against a schema. ⚡ Cron parserExplain a cron schedule in words. ⚡ JSONPath testerExtract data from JSON by path. ⚡ TOML ↔ JSONConvert between TOML and JSON. ⚡ PEM viewerInspect certificates, keys and CSRs. ⚡ GraphQL formatterFormat and minify GraphQL. ⚡

How the plans divide these up.

Opening a tool is not what costs us anything — volume is. Every tool that runs in your browser is free to everyone, forever, with no counter. What the plan decides is how much one run may cover, how many server-side runs you get a day, and whether results are kept, exported, scheduled or reachable from the API.

  • We do not run other people’s code. One tool on comparable lists is an online PHP editor that executes what you paste; Astrina formats PHP and reports syntax errors, and nothing is ever executed.
  • Tools that fetch a page identify themselves honestly and obey robots.txt.
  • Anything processed in your browser stays there — files are never sent to us.
See the table → API access

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