We help security professionals and enthusiasts audit web applications with efficiency and ease
Montreal, Canada
- Tweets 753
- Following 35
- Followers 10,965
- Likes 675
Caido is now available in Kali Linux 2025.3!
You can now install the desktop app or the CLI, each with a single command.
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We’re excited to share that we partnered with @ParrotSec 🤝
Caido will now be pre-installed on Parrot OS and we will work toward more native integrations with the OS.
Read all about it on our blog!
caido.io/blog/2025-01-17-par…
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🎉 Exciting news, students! 📚✨
To celebrate the new semester, we decided to make Caido Pro FREE for all students! 🤩
Follow-up the steps here: caido.io/student-plan
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We're excited to announce that Caido, our web security auditing toolkit, is now available in public beta 🚀
We're grateful for your support and can't wait for you to give it a try. Let us know your thoughts and help us improve the tool 🙏
medium.com/@caido/caido-is-n…
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Caido Labs are live 🚀
You now have hands-on labs to learn hacking using Caido's unique features.
🔗 Practice real attack scenarios with guided walkthroughs:
labs.cai.do
What attacks or lab scenarios do you want to see next?
Drop your suggestions below👇
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Hackers,
To make our pricing fairer worldwide, we’re trying out localized pricing.
We’re starting with Brazil 🇧🇷, with Individual plan prices dropping by about 50%.
💸 Monthly: ~110 BRL → 55 BRL
💸 Yearly: ~1,100 BRL → 550 BRL
Which country should we do next?
caido.io/blog/2025-08-21-loc…
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🎉 You’ve been asking for it. The Caido Scanner plugin is finally here.
Run checks in the background or scan specific requests on demand to find issues like reflected XSS, SQL injection, and CORS misconfigs.
All checks are open source. Add your own and help the list grow 💪
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The first bug bounty platform to be integrated into Caido🚀
New plugin "YesWeCaido" by @yeswehack is out now in the Caido Store.
Fetch all of your bug bounty programs on YesWeHack and pick scopes to add to your Caido instance directly.
Check out more details: github.com/yeswehack/yesweca…
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🎉 Exciting update! 🎅
Ever felt overwhelmed by endless HTTP requests? 😅 We've been there. That's why we created HTTPQL - a quick, easy way to filter through the noise.
github.com/caido/caido/relea…
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📝 Introducing "Findings"
Release v0.34.0 is out with a new "Create Finding" workflow node.
Flag interesting requests and make your own passive scanner rules, such as:
- Source code disclosure
- Software version disclosure
- Credit card/email/IP disclosure
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🎉 Release v0.33.0 is up!
Desktop users can now launch a browser with the correct certificate and proxy settings! No need to setup FoxyProxy anymore.
The launcher lets you select Chrome/Edge browsers on your device. You may need to install one of them for this feature to work.
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🤖 v0.35.0 is out!
We've introduced a new JavaScript node for passive/convert workflows,
enabling you to send HTTP requests, receive responses, and create
findings programmatically.
This allows for making more complicated workflows such as XSS and auth bypass checks.
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🎉 We’re excited to release Shift Agents, the new micro-agent framework for Caido users.
Build personalized micro-agents for tasks like XSS exploitation, WAF bypassing, or anything you can think of.
Available as a standalone plugin, with integration into Shift coming soon.
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We’re expanding localized pricing to India! 🇮🇳
Individual plan prices drop by nearly 65%:
💸 Monthly: ~1,750 INR → 625 INR
💸 Yearly: ~17,500 INR → 6,250 INR
Know a hacker in India who’s been waiting? Tag them. 👇
caido.io/blog/2025-08-21-loc…
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Hackers are busy and we know it ⌛
That is why we are starting a playlist of short videos to master different subjects in Caido.
Check it out on our Youtube Channel 🚀
piped.video/playlist?list=PL…
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Since we have a lot of new people in the Caido community, we want to remind you all that we have a free student plan 🤩
Procedure over here: caido.io/student-plan
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We're back with a new release! 🎉
This update focuses on UI improvements and the usual bug fixes.
• Brand new sidebar
• CSS/HTML/XML/JS pretty in responses
• Simplified panel resizing system
github.com/caido/caido/relea…
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Slide for the Hackfest Workshop 🎉
docs.google.com/presentation…
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We are super excited and grateful to announce that @Rhynorater is joining as an advisor 🚀🚀🚀
Excited to announce I've joined the @CaidoIO team as an Advisor!
I'll be taking a trip out to Montreal here within the next couple of weeks to meet with the team, brainstorm, and get oriented.
Excited to have the opportunity to be a part of this fantastic product!
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We are super excited to share that we acquired the Shift Plugin (shiftplugin.com/) and we are making it free to Caido paid users 🚀
Shift is a Caido plugin that is a smart AI companion for your hacking. It can craft payloads, Match&Replace rules, HTTPQL queries and much more.
All details here: caido.io/blog/2025-07-16-shi…
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🚀 New Plugin Alert!
"403Bypasser" by @bebiksior is now available in the Plugin Store!
Bypass 403 status codes by transforming HTTP requests with custom templates.
github.com/bebiksior/Caido40…
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It's release time 🚀
• HTML response preview
• Scope support for sitemap
• Improved logging
• New editor for requests/responses
github.com/caido/caido/relea…
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🛡️✨ Another addition to the Caido Store!
Introducing "CSRF PoC Generator" by @Tur24Tur.
Generate various types of CSRF PoC payloads from requests.
Check it out: github.com/BugBountyzip/Caid…
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When we started Caido 3 years ago, we never would have believed our software would become what it is today.
We are still the same 3 people working on it, it's not easy every day but our community and videos like these are what makes it all worth it ❤️
piped.video/watch?v=5Di0VVK9…
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The slides and the full code from our @defcon workshop is now available on Github 😎
It goes over creating a python tool using the Caido API and building a plugin frontend/backend.
Check it out 🫡
github.com/caido/workshop-de…
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🤖 v0.38.0 is out!
Pro users can now filter Automate results with HTTPQL directly from the Automate page. This should make it easier to pinpoint interesting requests/responses during testing.
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A bunch of people try Caido, but stop using it.
We want to know why‼️
Roast us. We can take it 👇
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New community workflows added by @ryotkak
- Generate CSRF PoC
- HTML Decode Everything
- HTML Encode Everything
- Form Data to JSON
- JSON to Form Data
- JSON to XML
- JSON Escape
- JSON Unescape
Check them out at github.com/caido/workflows
Thank you @ryotkak for the submissions!
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v0.41.0 is live! 🚀
We’re excited to introduce the new Community Plugin Store! Browse and install open-source plugins with a single click.
Interested in publishing a plugin? Visit developer.caido.io to learn how!
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🎉 v0.32.1 is out with a new shell node for passive workflows!
Run bash/zsh/cmd/powershell commands when a request or response is intercepted.
This was a highly requested feature following the release of passive workflows. More nodes will be included in the upcoming weeks.
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Caido Scanner v1.0.4 is out 🎉
This release adds 9 new checks:
- 7 for detecting CSP issues
- 1 for pages missing a content-type header
- 1 for spotting suspicious input transformations
Full changelog: github.com/caido-community/s…
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🚀 New plugin in the Caido Store!
Introducing "JXScout" by @fneves97.
Supercharge your JavaScript analysis by ingesting requests from Caido into JXScout.
JXScout: github.com/francisconeves97/…
Plugin: github.com/francisconeves97/…
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v0.39.0 is here with a new workflow integration for Replay!
Automatically run workflows and preprocessors during manual testing. Use it to encode payloads, generate signatures, run shell commands, and more.
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Smaller release with some much-requested features 😎
• Copy as cURL
• Change between GET and POST in Replay/Forward
• Timestamp of requests
• Fix unicode support
• (Pro) Fix bug for unlimited projects
github.com/caido/caido/relea…
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v0.37.0 is finally here!
Introducing our official plugin manager. Users can now develop their own plugins and share them with the community.
If you're interested in creating a Caido plugin, checkout github.com/caido/starterkit-… and join our Discord to get started.
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We've added a button in the HTTP History and Search tables to jump
to the currently selected row.
Click it to return to exactly where you were in the table.
Part of Caido v0.50.0 → caido.io/blog/2025-07-24-rel…
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In our latest update, we've included a powerful new feature: Automate Preprocessors.
Add custom transformations to your automate payloads with preprocessors like:
- Suffix
- Prefix
- URL Encode
- Workflows (available to Pro users)
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🎉 Passive workflows are here!
Writing plugins can be tedious to many. Passive workflows is our attempt to fix that.
By simplifying the steps it takes to customize Caido, we're hoping to encourage more people to tailor the tool to their needs. 🧵
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We are proud to have given over 300 Pro licenses to students🧑🎓
It is a lot for a small startup like us, but we are committed to the process ❤️
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🚀 v0.43.1 is here!
HTTPQL search is now free for all users! 🔍 Quickly filter through HTTP traffic to zero in on what matters most.
Plus, we’ve added new APIs for plugin developers to extend Caido’s capabilities. Get started at developer.caido.io and join our Discord.
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It's Defcon time! If you see us, we have Caido swag 🎉
We are also presenting a workshop Friday 10AM on Caido plugins at the BBH village.
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🎨 New release: You can now customize the Caido UI with custom CSS and JS!
We've also added column hiding and re-ordering in the Intercept, HTTP History, Search, and Sitemap tables.
Plus, we've added a few community-requested shortcuts 🎉
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Caido Scanner v1.0.2 is out 🎉
This release adds:
- 11 new checks
- Bug fixes
Full changelog: github.com/caido-community/s…
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To all students soon getting back to school 📚✨
We still offer you Caido for FREE to help on your learning journey 🚀
Follow-up the steps here: caido.io/student-plan
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🚀 We're back with a new release!
Introducing Convert Workflows: Drag and drop blocks to create complex conversion pipelines.
Workflows is the new system that will enable you to create custom plugins with little to no code 🔥.
github.com/caido/caido/relea…
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🔥 v0.36.1 is out!
Introducing "Active Workflows", a new workflow type to execute actions against individual requests.
Run CLI tools, analyze requests/responses with JS, modify/send new requests, and more.
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🚀New plugin in the Caido Store!
Introducing "Exploit Generator" by @stealthcopter
Generate executable proof-of-concept (PoC) code from intercepted requests, in multiple languages and frameworks, such as Python, JavaScript, and Bash/cURL.
Check out more details: github.com/stealthcopter/Cai…
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Time for a new release 🚀
• (Pro) Introducing the Caido Assistant, our implementation of ChatGPT tailored for security use
• Highlight in requests/responses is easier to see
• Font-size is now configurable
• Collections UI supports Drag and Drop
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Wow thanks for the excellent video 💕
This is probably the best intro to workflows and scripting in Caido to date.
Caido intercepts web traffic, acts as a fuzzing engine, traffic replayer, & more. @appSecExp demos @CaidoIO's updates, highlighting the JS engine in the Workflows module. Is Caido worth adding to your workflow? Watch & find out! piped.video/4rpbtc4nPAA
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v0.40.0 is now live! 🚀
This release focuses on improving performance and responsiveness for desktop users, especially on Linux. If you’ve found the desktop experience sluggish on Linux, give it another try.
caido.io/download
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We are proud to have given now over 400 Pro licenses to students 🧑🎓
We hope you enjoy learning security with Caido ❤️
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🚀 New plugin in the Caido Store!
Introducing "QuickSSRF" by w2xim3.
Perform out-of-band testing with interactsh to detect vulnerabilities like blind SSRF.
Check it out: github.com/caido-community/q…
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🎉 Happy New Year! We’re kicking off 2025 with a new plugin in the Caido Store!
Introducing “Param Finder” by @bebiksior—discover hidden parameters in Caido with ease.
Check it out: github.com/bebiksior/paramfi…
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Missed our workshop at Hackfest? The full presentation and the exercises are available on Github 💪
We go in depth about Workflows, Plugins and the GraphQL API 👀
github.com/caido/workshop-ha…
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Special moment for us ✨
This is the first conference that we are sponsoring!
It is going to be a super cool event , see you there 🫡
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We are starting a monthly livestream with HackSmarter (hacksmarter.org/) to go over the new Caido features being releases 🚀
We're also giving away a 6-month premium subscription to Caido. Only those in the live event will be eligible to win 👀
See you on Thu, Oct 2, 2025, 1:00 PM EST!
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🚀New plugin in the Caido Store!
Introducing "GraphQL Analyzer" by @amrelsagaei
Scan GraphQL endpoints to map schemas, visualize API relationships, and perform common attacks.
Check out more details: github.com/amrelsagaei/Graph…
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🚀New plugin in the Caido Store!
Introducing "Compare" by @amrelsagaei
Add a pair of requests or responses and display a side-by-side view with visual differences highlighted.
Check out more details: github.com/amrelsagaei/Compa…
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🚀 v0.47.0 is here!
✅ Redesigned Match & Replace + Workflow support
✅ Built-in logs for better debugging
✅ DNS entry overrides
✅ Invisible proxying
✅ Request / replay response in browser
✅ Default project selection
Here’s everything you need to know 🧵👇
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It's release time 🎃
- Responses can now be intercepted and modified
- Delete requests from HTTP History
- [Pro] Import/export your projects using our new "backups" page
- [Pro] Add shell commands to your convert workflows with the new "Shell" node
github.com/caido/caido/relea…
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🚀 v0.45.1 is out!
You can now filter intercepted requests with HTTPQL to focus on the ones that matter to you.
We’ve also added manual Finding creation, URL decoding on hover, and more.
Full list of changes: github.com/caido/caido/relea…
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🚀 Another plugin in the Caido Store!
Introducing "Data Grep" by @bebiksior.
Extract data from requests and responses. Great for building wordlists, finding secrets, or powering your recon.
Check it out: github.com/caido-community/d…
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🚀New plugin in the Caido Store!
Introducing "Squash" by @evanconnelly and @Rhynorater
Minimize HTTP Requests to remove the noise and focus on what matters.
Check out more details: github.com/evanconnelly/squa…
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We are proud to sponsor Nahamcon again this year, it's going the be awesome as always 🤘
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Our second beta testers is underway 🎉
We already have a lot of feature requests and bug reports in our public tracker, what an awesome community 🤩
Special shoutout to @sw33tLie, @Rhynorater and @dee__see who are going above and beyond 🙏
github.com/caido/caido
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After months of work, we've hit a new milestone: we're launching our first beta to a lucky few 🥳
Make sure to check your emails as we increase our beta program in the coming weeks/months.
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It's release time 🤩
- We have websocket support! View messages that pass through the proxy
- Shortcuts are now configurable
- Easy access to convert workflows using the right-click menu
- Scopes now use the glob patterns instead of SQL LIKE syntax
github.com/caido/caido/relea…
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🚀 New plugin in the Caido Store!
Introducing "Workflow Store" by @bebiksior.
Browse and 1-click install community-contributed workflows — or submit your own to help others automate their testing.
Check it out: github.com/caido-community/w…
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🚀 v0.44.1 is here!
Say hello to Environments, a powerful way to handle context-specific cookies, API keys, and headers. Easily switch between environments to streamline your testing.
We’ve also added tab reordering, CA certificate importing, and SNI overrides.
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Thanks to our awesome community, we reached an important milestone 🥳
We passed the 100 pro users mark! To all of you, thank you for making this journey possible ❤️
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Time for a new release 🚀
• Unicode support in the editor
• Request/response exporting
• Multiple bugs fixed & improved stability
• (Pro) Unlimited projects and filtered exports
github.com/caido/caido/relea…
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Got a plugin you want to see in Caido? Want to help create plugins?
Head over to our community plugin ideas board 🤩
links.caido.io/ideas
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🚀New plugin in the Caido Store!
Introducing "Cerebrum" by @DewSecOff
Store selected HTTP requests and organize them with notes and status management.
Check out more details: github.com/DewSecOff/Caido-P…
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Plugin developers,
We just launched ui-kit.caido.io — a place to explore and copy Caido’s UI components, built to help you create better plugins, faster.
✅ Copy-paste ready-made components
✅ See how each one is used in context
✅ Match Caido’s look & feel
github.com/caido/ui-kit
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Congrats to @ArchAngelDDay for the MVH 🎉
Apparently you can win MVH with Caido free, who knew 👀
Had an absolutely stellar time at @Hacker0x01 's #h1305 ! The @CapitalOne team was a real joy to work with, and Miami felt like just the perfect location.
As this was my 16th LHE, I was beginning to think I would never make MVH, but having a positive attitude, grit, and stick-to-itiveness really goes a long way.
Some things that I learned were:
- It really truly does make a difference to go for impact. As someone who normally farms IDORs/PrivEscs, this was an experiment, but getting a single High bounty felt wayyyy better than getting 10 Mediums.
- I spent nearly the entire LHE on a single application. By the end of the event, no one at the event new that API better than I did. This meant that I had _very_ few duplicates. I didn't split a single one of my big bounties. Go deep.
- Have patience. One of my best bugs took me _literally_ 15 hours to complete. A bug that takes you 15 hours will almost NEVER be a dupe.
- Working very closely with the customer made success possible. My Slack conversation with one of the CapOne security engineers could nearly fill a novel. We were able to work together to escalate my findings and find maximum impact. The customer is _not_ your adversary.
- Despite hacking solo and despite LHE's being a competition, other hackers _really do_ want to see you succeed. The best thing about winning MVH wasn't the belt, but seeing dozens of other hackers LEGITIMATELY excited for me. The hacker community is AWESOME!
I loved this event. I love the #bugbounty community. And I love both the H1 & C1 team's.
Here's to a great start to 2024 - let's hack the world!
#gloriaDeo
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🚀v0.48.0 is out now!
With v0.48.0, our biggest release so far, we're bringing you plenty of highly desired features and upgrades:
✅ WebSocket Interception
✅ Guest Mode
✅ Sitemap Improvements
✅ Automatic Updates
Here’s everything you need to know 🧵👇
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New year, new blog 🚀
Check out our latest post about HTTPQL, our powerful query language!
blog.caido.io/introducing-ht…
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Happy holidays and happy new year to all of you ✨
We are blessed to have such an awesome community ♥️
See you all in 2025 for more Caido
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It's release time ❄️
- Intercept supports scopes
- Clear all added to HTTP History
- Fixed login issue for linux desktop user
- Various quality of life improvements
github.com/caido/caido/relea…
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🚀 v0.42.0 is out!
You can now route traffic through SOCKS proxies, with the ability to assign different proxies based on the destination target.
Check all the details about the latest release here: github.com/caido/caido/relea…
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🚀 New plugin in the Caido Store!
Introducing "Notes++" by @_StaticFlow_ and @bebiksior.
Markdown-powered notes within Caido! Embed replay sessions and insert selected text directly into your notes.
Check out more details: github.com/caido-community/N…
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🚀New plugin in the Caido Store!
Introducing "ReDocs" by @amrelsagaei
Import your API specs and instantly generate Replay sessions from them.
Check out more details: github.com/amrelsagaei/ReDoc…
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🎉 New Plugin Release!
"EvenBetter" by @bebiksior is now available in the Plugin Store!
A collection of tweaks and improvements for Caido.
Check it out: github.com/bebiksior/EvenBet…
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🚀v0.50.0 is out now!
This release packs many bug fixes and quality-of-life improvements:
✅ Active & Passive Workflow Testing
✅ Jump to Row
✅ Font Family
✅ Vertical Layout
✅ Saving HTTPQL Queries
🔗 Check out the full changelog:
caido.io/blog/2025-07-24-rel…
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🚀 v0.30.1 is out!
We've added support for upstream proxies. We've also put in some work to improve how we handle HTTP requests, making Caido faster and more efficient.
github.com/caido/caido/relea…
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🪔 Happy Diwali to everyone celebrating ✨
A quick reminder for users in India: As part of our localized pricing rollout, Caido is now ₹625 per month, about 65% lower than before.
Get started → caido.io/pricing
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