The only tool that tests your APIs, your UI, and your database
Performance, security, accessibility, and automation — all in one place, powered by AI, with zero cloud required.
No account required · Local-first · Windows / macOS / Linux
THE DIFFERENTIATOR
One tool. Three testing dimensions.
Most tools test one thing. Rostyman tests everything.
API Testing
HTTP, GraphQL, gRPC, WebSocket, Socket.IO, MQTT, SSE, and MCP. Every protocol your stack uses, with auth, scripts, history, and collections.
Database Client
Query any database without switching apps. NLP → SQL, ER diagrams, schema diff, and EXPLAIN plans for every dialect.
Browser Automation
Test your UI the way users actually use it. Embedded Chromium, performance + WCAG accessibility scoring, visual regression, and database-aware assertions.
API TESTING
Every protocol. One window.
From simple REST calls to streaming WebSockets and AI agent tools via MCP — Rostyman handles every protocol your stack uses without switching apps.
- 8 protocols including MCP for AI agents
- Full auth suite (Bearer/OAuth2/API Key/AWS SigV4)
- Pre/post request scripts with rm.* API
- Import from your existing API client in 2 clicks
WORKFLOW
Automate complex API flows visually.
Build sophisticated API workflows with a drag-and-drop visual editor. Chain requests, add conditions, loops, transforms, and retry logic — without writing orchestration code.
- 11 node types including sub-workflows and browser tests
- Retry with exponential backoff & status code filters
- Response assertions with 9 operators
- Full run history with step-by-step trace replay
AI ASSISTANT
AI that speaks your API's language.
Generate requests from plain English, explain response payloads, write pre-request scripts, and debug errors — all without leaving your workflow.
- OpenAI / Anthropic / Ollama (local, fully private)
- BYO key or Ollama — no request limits, ever
- Your requests never leave your machine with Ollama
FILE SHARING
Share files on your LAN. No cloud involved.
Discover devices on your network automatically using mDNS, send files with TLS 1.3 encryption, and coordinate with your team — all without a server or cloud account.
- Zero-config device discovery via mDNS/Bonjour
- TLS 1.3 end-to-end encrypted transfers
- Emoji reactions + delivery read receipts
- Offline message queuing with automatic retry
DATABASES
Query any database without switching apps.
A full database client, built into your API tool. 8 drivers, ER diagrams, AI-generated SQL, schema diff, and a DB Verify tab on every HTTP request — all alongside your API work.
- 8 drivers: PostgreSQL, MySQL, MariaDB, SQLite, MSSQL, MongoDB, Redis, CockroachDB
- NLP → SQL plus AI schema analysis and CRUD API generation
- ER diagrams with vector PDF export, MiniMap, and Fullscreen mode
- DB Verify on HTTP requests — assert your database changed
BROWSER AUTOMATION
Beta · free in v1.0Test your UI the way users actually use it.
An embedded Chromium test runner with three-phase analysis (performance, security, accessibility), visual regression, and assertDB — no config files required.
- Three-phase scan: performance, security, WCAG accessibility
- assertAccessibility mid-test, not just at load
- Visual regression — element + full-page pixel diff
- 23 step types incl. tap, swipe, longPress, drag, assertDB, assertApiCall
Built different, by design
Every protocol, every feature, every byte — on your machine.
Every protocol, free
HTTP, GraphQL, gRPC, WebSocket, Socket.IO, MQTT, SSE, and MCP — all included. No paywalls, no plan tiers, no surprises.
Your data stays on your machine
Zero telemetry on your requests, zero cloud sync, zero account required. Your collections never leave your laptop unless you say so.
API + DB + UI — one tool
API testing, a database client, and a browser test runner in a single app — no switching tools mid-workflow, no piecing together the picture across five windows.
ALSO INCLUDED
Everything else we ship in the box
Features most teams discover a month in. They're the reason people stay.
Mock Server
Local HTTP mocks from any collection.
Scheduler
Cron jobs, on your machine.
Runner & CLI
Batch runs, CI-ready, free.
MCP Server
~80 tools for AI agents.
Code Generation
17 languages, one click.
Request History
Full replay of every run.
Vault
Encrypted secrets, never synced.
Certificates & mTLS
Zero-trust, built in.
Connected Storage
Git, URL, Drive, Dropbox.
Screen Capture
Screenshots + video recording.
Themes & Languages
20 themes, 18 languages.
Plugins
Custom import & export formats.
Simple, honest pricing
Lite is free forever — includes the full database client, file sharing, and browser automation (beta, free in v1.0). Pro adds cloud-hosted services.
Lite
Full API + DB + file sharing — free forever.
- ✓ All 8 protocols (HTTP, GraphQL, gRPC, WS, Socket.IO, MQTT, SSE, MCP)
- ✓ Workflow editor + visual automation
- ✓ AI assistant — BYO key or Ollama, no limits
- ✓ Database client (8 drivers — PostgreSQL, MySQL, MongoDB & more)
- ✓ Browser automation + test recorder (Beta — free in v1.0)
- ✓ LAN file sharing (TLS 1.3, zero-config)
- ✓ MCP Server, Runner & CLI, Mock Server · 20 themes
Pro
$69/year · save 28%
Cloud-hosted services & priority support.
- ✓ Everything in Lite
- ✓ Cloud monitoring & uptime alerts
- ✓ API documentation publishing
- ✓ CI/CD test reports dashboard
- ✓ Cloud sync (managed secrets)
- ✓ 30-day free trial — no credit card needed
Team
$190/user/year · save 17%
Collaborate at scale.
- ✓ Everything in Pro
- ✓ Shared workspaces
- ✓ Role-based access control (RBAC)
- ✓ Forking & pull requests for collections
- ✓ Real-time collaboration
- ✓ Team analytics dashboard
Need SSO, audit logs, or on-premise? Talk to us about Enterprise →
Test everything. Ship with confidence.
Free download. No account. No credit card. No cloud.
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