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

Monitoring 4

Checks that keep running after you close the tab.

Uptime monitorAvailability checked around the clock. Account SEO monitorDaily tracking of SEO signals. Account SSL monitorWarns before the certificate expires. Account Weekly SEO reportAn automatic audit every week. Account

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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