About
Built for developers who care about speed.
IronCall is an API client that stays out of your way. Fast to open, fast to use, and built to last — without subscriptions, cloud lock-in, or unnecessary complexity.
Why we built it
Postman was the obvious choice for years. Then it got slower, more cloud-dependent, and started gating basic features behind a login wall. We found ourselves fighting the tool instead of building with it.
Existing alternatives either lack collaboration entirely or replicate the same top-heavy model. We wanted something different: a client that is genuinely fast, works offline by default, and treats your data as yours.
IronCall is the tool we wanted to use. We think a lot of developers feel the same way.
What we stand for
Offline first
Every feature works without a network connection. Sync is opt-in, not a requirement.
Your data stays yours
Collections live on your machine. When sync is enabled, data is end-to-end encrypted and stored on EU servers only.
No dark patterns
Telemetry is opt-in and anonymous. No forced accounts, no paywalled basics, no surprise price hikes.
Speed as a feature
IronCall is built with Rust and Tauri. It launches in under a second and stays responsive under load.
EU-hosted
All server infrastructure runs in the EU. No data crosses jurisdictions without your knowledge.
Real collaboration
Team sync uses CRDTs — the same technology behind modern collaborative editors. No conflicts, no last-write-wins.
How it's built
IronCall is built on Rust and Tauri v2, with a Solid.js frontend. The same Rust core powers both the desktop app and the CLI, so behaviour is consistent across interfaces.
Desktop
Tauri v2 + Solid.js
Core
Rust
CLI
Rust + clap v4
Local storage
SQLite
Sync backend
Axum + PostgreSQL
Collection format
YAML
Get in touch
Questions, feedback, or partnership inquiries — contact@ironcall.dev. You can also submit bug reports or feature requests directly from within the app using the feedback form.