Caido
Lightweight web security testing proxy with a free tier, built as a modern alternative to Burp Suite.
- Verified facts
- 4 of 4
- Alternatives ranked
- 3
- Approved reviews
- 0
- Visits sent from here
- 0
About Caido
Caido is a web application security toolkit built around an intercepting proxy, aimed at bug bounty hunters, pentesters and security engineers. It covers the core manual workflow of capturing traffic, replaying and editing requests, and automating attacks, and adds HTTPQL, a query language for filtering requests and responses, plus a node-based workflow builder for ad-hoc automation. It is written to be fast and light, can run headless with an API, and supports community plugins. Newer releases add an AI assistant that can use your own model provider. The free Basic plan includes the core HTTP tools with caps on projects, workflows and plugins; paid Individual, Team and Enterprise plans remove the limits and add the AI assistant, shared instances and team billing. It is a younger product than Burp, so its automated scanning and extension ecosystem are smaller.
Best for: Bug bounty hunters and pentesters who want a faster, lighter Burp-style proxy.
Pros and cons
What works
- Free plan includes all core HTTP tools
- HTTPQL makes filtering large traffic histories quick
- Headless, API-first design suits automation
Why people leave
- Free plan caps projects, workflows and plugins
- Smaller plugin ecosystem than Burp Suite
- AI assistant and backups require a paid plan
Top Caido alternatives
See all 3- 1
Burp Suite66.5The established standard, with a stronger automated scanner and a bigger extension library.
- 2
ZAP62.6Fully free and open source, including automated scanning and CI integration.
- 3
mitmproxy52.6Free, scriptable proxy for testers comfortable with Python and the terminal.
Why people left Caido
In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.
No switching stories yet. If you moved away from Caido, review the app you switched to and tell us why.
Reviews
No approved reviews yet. How we verify reviewers
Write a review of Caido
Caido: common questions
Is Caido free?
Caido has a free plan and paid plans. Free plan: Yes, 2 projects and 7 workflows (checked on Caido's own site).
Is Caido open source?
No, Caido is not open source. Open-source alternatives include ZAP and mitmproxy.
What platforms does Caido run on?
Caido is available for Windows, macOS and Linux.
What are the best alternatives to Caido?
The highest-ranked Caido alternatives right now are Burp Suite, ZAP and mitmproxy. See the full ranked list for pricing, platforms and verified facts.