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Add PureDevTools: CORS Header Generator, CSS Filter Generator, YAML Validator#310

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moimikey merged 2 commits into
moimikey:mainfrom
yxc-s:add-puredevtools-tools
Mar 17, 2026
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Add PureDevTools: CORS Header Generator, CSS Filter Generator, YAML Validator#310
moimikey merged 2 commits into
moimikey:mainfrom
yxc-s:add-puredevtools-tools

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@yxc-s

@yxc-s yxc-s commented Mar 17, 2026

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Three browser-based developer tools from PureDevTools:

All tools: browser-based, direct link to tool, 100% free, no signup, client-side only.

…alidator

Three browser-based developer tools from PureDevTools:
- CORS Header Generator: visual CORS header configuration, 100% client-side
- CSS Filter Generator: compose CSS filter effects with real-time preview
- YAML Validator: validate YAML syntax with line numbers, format, convert to JSON

All tools are free, require no signup, and process everything in the browser.
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Hey yxc-s! Thanks for your submission! 🚀

To keep awesome-devtools instantly accessible for everyone, all tools must be:

  • Browser-based — no downloads or native app installs
  • Direct link — goes straight to the tool (not a multi-tool landing page)
  • 100% free — no signups, trials, paywalls, or usage limits

Please make sure your PR meets these criteria. It may take some time for your submission to be reviewed — you can occasionally comment with a "bump" to bring more attention to it.

Thanks for contributing! 🙌

@moimikey

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thanks @yxc-s

@moimikey moimikey merged commit 31e8bb0 into moimikey:main Mar 17, 2026
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2 participants