v0.3.0Open SourceMIT LicenseCross-Platform

The API Platform That
Respects Your Privacy,
Your RAM, and Your Git

Local-first, native-speed. Send REST, GraphQL, gRPC, WebSocket — all from one interface. No login. No cloud. No bloat.

~50MB RAM
<2s Startup
Zero Login
Cross-Platform

Available for macOS, Windows, and Linux

ApiArk — REST
GETList Users
POSTCreate User
PUTUpdate Profile
GEThttps://api.example.com/v1/users
200 OK45ms2.4 KB
1{
2 "users": [
3 {
4 "id": "usr_k8x2m",
5 "name": "Sarah Chen",
6 "email": "[email protected]",
7 "role": "admin",
8 "created_at": "2026-01-15T08:30:00Z"
9 },
10 {
11 "id": "usr_p3n7q",
12 "name": "Marcus Johnson",
13 "email": "[email protected]",
14 "role": "developer",
15 "created_at": "2026-02-20T14:15:00Z"
16 }
17 ],
18 "total": 2,
19 "page": 1
20}

Everything you need. Nothing you don't.

A complete API development toolkit built for developers who value speed, privacy, and control.

Native Speed

50MB RAM. <2s startup. Tauri v2 + Rust backend delivers native performance — not Electron bloat.

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Local-First Forever

Your data never leaves your machine. No login. No cloud. No telemetry. Complete privacy by design.

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Git-Native Storage

YAML files. One per request. Fully diffable, mergeable, versionable. Works with any Git workflow.

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TypeScript Scripting

Pre/post scripts in TypeScript. Chai assertions, CryptoJS, Lodash, Faker — all built in.

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AI-Powered

Generate requests from natural language. Auto-generate tests. Use your own API key — no usage limits.

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Plugin Ecosystem

Extend with JavaScript or WASM plugins. Custom auth, transformers, integrations — your way.

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Every protocol. One interface.

REST, GraphQL, gRPC, WebSocket, SSE, MQTT — all with the same experience.

ApiArk
GET/api/users
200 OK45ms
1{
2 "users": [
3 { "id": 1, "name": "Sarah Chen", "role": "admin" },
4 { "id": 2, "name": "Marcus J.", "role": "dev" }
5 ],
6 "total": 2
7}

See it in action.

12 seconds. That's all it takes to see why developers are switching.

10x lighter.

Same power. Fraction of the resources.

Postman
0MB
Insomnia
0MB
Bruno
0MB
Hoppscotch
0MB
ApiArk
16x lighter
0MB

Average RAM usage at idle — measured on macOS 14, Apple M2, 10 requests loaded

0MB

Average RAM Usage

vs 800MB for Postman

<0s

Cold Start Time

vs 10-30s for Postman

0MB

Download Size

vs 200MB+ for Postman

“Postman uses 800MB of RAM to send a GET request. ApiArk uses 50MB.Your laptop deserves better.”

See how we compare.

Every feature. Every competitor. No asterisks.

FeatureoursApiArkPostmanBrunoInsomniaHoppscotch
FrameworkTauri v2ElectronElectronElectronTauri
RAM Usage~50MB300-800MB150-300MB200-400MB50-80MB
Account RequiredOptionalOptional
Data StorageFilesystemCloudFilesystemCloudIndexedDB
REST
GraphQL
gRPC
WebSocket
SSE
MQTT
Mock ServersCloud onlyBasic
MonitoringCloud only
Collection Runner
CLI ToolNewmanbru CLIinsohopp
Plugin Systemnpm
Open SourceMITMITMITMIT
PriceFree forever$19/user/mo$6/user/mo$12/user/moCustom

Ready to ditch the bloat?

Try it — 60 seconds to your first request. No signup. No credit card. Just download and go.

Free forever. No account required.

100% Free
No Telemetry
Privacy First