Open Headers

openheaders.io

ExtensionDeveloper Tools32 users

Item media 2 (screenshot) for Open Headers

Item media 1 (screenshot) for Open Headers

Overview

Your existing Web DevToolkit, inside a browser extension. Modify live browser requests. Manage API Collections. Team Collaboration.

Your existing Web DevToolkit inside a browser extension. - Modify live browser requests. Manage API Collections. Team Collaboration - Work offline -> Auto-sync when back online - Chain & Schedule API Requests - Front-end and back-end inside the browser extension: no other tool on the market ships this - Open core, honestly labeled: the UI, shell, and core are MIT-licensed and public - Local-first: no account, no cloud, zero telemetry Our vision: We provide a platform where everyone can use local tools to generate their own local data and own it, not a cloud vendor middleman. Like it should be. Everything is free to use and free to self-host.

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Details

Version
2026.7.0
Updated
July 6, 2026
Flag concern
Size
5.36MiB
Languages
English
Developer
Website
Email
contact@openheaders.io
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site