Fissure is an Electron-based penetration testing browser that puts MITM interception, payload injection, CyberChef, and user-agent spoofing into a single unified workflow. Stop tab-switching. Start testing.
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No more juggling Burp, a browser, CyberChef tabs, and a payload text file. Fissure unifies the pen test workflow.
Full request/response interception with dynamic SSL cert generation. Intercept, modify, replay. Built into the browser — no external proxy needed.
70+ injection payloads across 8 categories: XSS, SQLi, command injection, SSTI, path traversal, XXE, header injection, and auth bypass.
Encode, decode, hash, and transform data without leaving the browser. Chain operations. Apply to intercepted requests on the fly.
20+ presets for browsers, mobile devices, bots, and custom agents. Switch UA per-tab or globally. Test how targets respond to different clients.
Capture any request, modify parameters, headers, or body, and replay it. Chain replays for multi-step attack sequences.
Built on Electron with React. Runs on Windows, macOS, and Linux. Same workflow everywhere. Same muscle memory.
Fissure's core engine is open source. Inspect every line of code that touches your traffic. Contribute features. Self-host if you prefer. SaaS tiers will add cloud sync, team collaboration, and managed payload updates.
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