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Open Headers

Bithub Team SRL
5.0(

9 ratings

)
ExtensionDeveloper Tools72 users
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Item media 1 (screenshot) for Open Headers
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Overview

Open Source DevToolkit, inside a browser extension. Modify live browser requests. Manage API Collections. Team Collaboration.

Local-first: no account, no cloud, your data stays on your machine. BROWSER INTERCEPTOR • Rewrite headers, block, redirect, delay, mock responses, edit bodies and query strings, merge, inject CSS/JS, modify WebSocket and SSE messages • Static rules compile into the browser's own network layer and catch every request: pages, frames, fetch, XHR, images, fonts, scripts • No proxy port and no CA certificate: rules run with the page's own permissions, nothing man-in-the-middles your traffic • DevTools-grade network panel with request and response inspection • Five variable scopes in every rule: vault, environment, collection, workspace, live API CLIENT • HTTP, GraphQL with schema introspection, WebSocket, Socket.IO and SSE right in the browser; gRPC and MQTT through the desktop companion • Collections with folders, environments, OAuth 2.0 with PKCE and refresh, multipart file uploads • Pre- and post-response scripts and assertions • Workflows: chain and schedule requests with dependencies, AND/OR run conditions and parallel steps; every response value lands in a live variable any rule can inject into real traffic • Import from cURL, HAR and more • Encrypted vault for secrets and tokens, referenced by name, never exposed TEAM COLLABORATION • Multi-workspace: your personal workspace and the team's shared one side by side, each in its own tab • Sync through back-ends you control: the desktop app, a box on your LAN, or a self-hosted server • Self-hosted server with SSO, RBAC user management and audit logs • Optional Git back-end for durable workspace history: a new device bootstraps from Git and auto-syncs from there • Concurrent multi-user editing • Work offline, auto-sync when back online Our vision: a platform where everyone can use local tools to generate their own local data and own it, not a cloud vendor middleman. Everything is free to use and free to self-host. Like it should be.

5 out of 59 ratings

Learn more about results and reviews.

Details

  • Version
    2026.10.0
  • Updated
    October 4, 2026
  • Size
    9.17MiB
  • Languages
    9 languages
  • Developer
    Bithub Team SRL
    Strada Gloriei 32 Iasi, Iași 700720 RO
    Website
    Email
    contact@openheaders.io
    Phone
    +40 775 304 550
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    663046053

Privacy

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

Open Headers has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Open Headers handles the following:

User activity

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

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