API development, synchronized with your thoughts.
Zero friction. Infinite speed. Build, test, and iterate on APIs in a flow state that keeps up with your ideas.
Everything you need. Nothing you don't.
A toolkit engineered for developers who refuse to slow down.
Universal Sync
Your collections, environments, and history synced across every device in real-time. Never lose context again.
Native Performance
Built on Rust-powered internals. Responses render in microseconds, not seconds. No Electron overhead.
Smart Environments
Dynamic variables, secrets management, and one-click environment switching baked right in.
Team Collaboration
Share, comment, and co-edit API collections live with your team. No more version conflicts or stale docs.
Let any AI model work inside your Conflux — safely.
Conflux Desktop embeds a local MCP server. Connect Claude Code or any MCP client with one command and let the agent read, build, run and test your APIs — while every change stays a local draft until you publish.
$ claude mcp add --transport http --scope user conflux http://127.0.0.1:4630/mcp \$ --header "Authorization: Bearer <token>"
31 tools, ready to use
Read, write, execute and run/snapshot tools cover the whole workbench — collections, requests, environments, history.
Runs on your machine
Loopback-only, Bearer token required. Nothing but a process on this computer, holding the token, can reach it.
Off by default, you're in control
Writes land as local drafts. Nothing reaches Conflux.Server until you press Ctrl+S — and deletes need a separate opt-in.
Secrets never leak
Vault values, environment secrets, and Authorization/Cookie headers are always masked as *** in tool output.
From Postman to Conflux in 3 seconds.
Import your entire workspace — collections, environments, auth configs, and request history — with one drag-and-drop. No re-configuration. No data loss.
- Collections & folders preserved
- All environments migrated
- Auth configs & tokens intact
- Variable sets fully mapped
Drop your Postman collection here
or click to browse
Your Secrets, Locally Guarded.
API keys, tokens, and environment secrets never leave your machine. Conflux's local-first architecture guarantees zero cloud exposure for sensitive credentials.
End-to-End Encrypted
All synced data is encrypted with AES-256-GCM on-device before transmission. We cannot read your data.
Local-First Storage
Secrets live exclusively in your system keychain. Never stored on Conflux's servers.
Zero Telemetry
No usage analytics, no request logging. Opt-in telemetry only, disabled by default.
Open Source Core
Conflux's security layer is fully open source and independently audited by Trail of Bits.
Fits into your existing workflow.
Conflux connects natively with the tools already in your stack. CI/CD pipelines, editors, version control — all integrated without friction.
VS Code
Run requests directly from your editor
GitHub
Sync collections with your repos
Slack
Notify your team on API changes
Docker
Test containerized services locally
GitHub Actions
Automate API testing in CI/CD
Linear
Link API issues to engineering tasks
Datadog
Monitor API performance at scale
Kubernetes
Inspect cluster-internal endpoints
+40 more integrations via REST webhooks and the Conflux CLI
One source of truth for your entire team.
Branch environments like git branches, manage permissions with surgical precision, and see your teammates' cursors in real time.
Environment Branching
Fork production environments into isolated feature branches. Merge when your changes are ready.
Role-Based Access Control
Fine-grained permissions at the collection, environment, and variable level. No oversharing.
Live Presence
See exactly who is editing which collection or environment, in real time, with named cursors.
Immutable Audit Log
Every change, request, and environment switch is logged, timestamped, and tamper-proof.
Environments
Live Presence
Alex K.
editing Auth API
Sara T.
reviewing Payments
Mia R.
added 3 endpoints
Dev W.
watching
Your infrastructure. Your identity provider. Your rules.
Run Conflux inside your company, sign in with the accounts your people already have, and let your directory decide who sees what.
Runs on your servers
Collections and secrets never leave your network.
Company sign-in
Microsoft Entra ID, Okta, Keycloak, Google Workspace, AD FS or Active Directory. No extra passwords.
Teams mirror your directory
Groups become teams and roles, automatically.
Offboarding is automatic
Disable an account in the directory and access to Conflux ends with it.
Company server
Teams from groups
Ivan P.
ivan@acme.com · Backend
Download Conflux
Available on Windows, macOS, and Linux.
Other platforms & formats
Conflux CLI
v0.3.4Sign in, install modules, and run load tests or tunnels straight from your terminal.
View CLI docs$ conflux install meter
System requirements
Windows 10 1809+, macOS 12+, or a recent Linux distro (64-bit). 4 GB RAM minimum, 8 GB recommended. 200 MB disk space. Internet connection required for sync features.
Frequently asked questions
Everything you need to know before switching from Postman.
Is Conflux free?+
Yes. Conflux is free to download and use, with no credit card required.
Is Conflux a Postman alternative?+
Yes. Conflux is built as a free, native alternative to Postman for testing and developing REST APIs.
Can I import my Postman collections?+
Yes. Drag and drop your exported Postman collection and Conflux imports it in one click — collections, environments, auth configs, and history.
Where are my API keys and secrets stored?+
Locally, in your system's secure storage. Secrets never leave your machine or reach Conflux's servers unless you explicitly enable encrypted sync.
Which platforms are supported?+
Conflux is available on Windows, macOS, and Linux.
What is the Conflux CLI?+
A companion command-line tool with modules for load testing (meter), tunneling a local port to a public URL (share), and diagnosing CORS errors (cors).
Can I self-host Conflux for my organization?+
Yes. Conflux runs on your own infrastructure, so collections, environments and history stay in your network. The For organizations page explains what your company gets, and the deployment guide covers setup.
Does Conflux integrate with Active Directory or our SSO?+
Yes. People sign in with the accounts they already have: Microsoft Entra ID, Okta, Keycloak, Google Workspace, AD FS or on-prem Active Directory. Directory groups become teams and roles, and an account disabled in the directory loses access to Conflux automatically.
Can Claude Code or another AI agent use Conflux directly?+
Yes. Conflux Desktop embeds a local MCP server, off by default. Connect Claude Code or any MCP client with one command and let it read, build, run and test your APIs — writes stay local drafts until you publish. See the MCP page for details.
Ready to enter your flow state?
Download Conflux for free and leave friction behind.