Comparison with Postman

Comparison with Postman

An honest comparison for developers considering the switch.

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Why Developers Are Leaving Postman

1. Performance

Metric	Postman	ApiArk
Download size	~200 MB	~20 MB
RAM at idle	300-800 MB	~60 MB
Startup time	10-30 seconds	<2 seconds
Framework	Electron (Chromium + Node.js)	Tauri v2 (Rust + native webview)

Postman runs an entire Chrome browser instance. ApiArk uses your OS's native webview — no wasted resources.

2. Forced Account

	Postman	ApiArk
Login required	Yes (forced since 2023)	Never
Can use offline	Limited (scratchpad removed)	Fully
Data stored	Their cloud by default	Your filesystem only

ApiArk will never require an account. Not now, not ever.

3. Privacy & Security

	Postman	ApiArk
Data leaks	30,000 workspace leak (Dec 2024)	Impossible — no cloud
Telemetry	Yes	None (opt-in crash reports only)
Secret handling	Synced to cloud	Local .env files only
Compliance	Depends on their infrastructure	GDPR-friendly by design

Your API keys, tokens, and request data never leave your machine with ApiArk.

4. Cost

Plan	Postman	ApiArk
Free	1 user, 25 collection runs/month, forced login	Unlimited everything, no login
Team	$14/user/month	$8/user/month
Enterprise	$49/user/month	Contact us

Postman's free tier was reduced to 1 user and 25 runs/month in March 2026. ApiArk's free tier has no limits.

5. Data Format

	Postman	ApiArk
Format	Proprietary JSON	Standard YAML
Storage	Cloud-first	Filesystem-first
Git-friendly	No (large JSON blobs)	Yes (one YAML file per request)
Human-readable	Sort of (complex JSON)	Yes (clean YAML)
Edit without app	No	Yes (any text editor)

ApiArk collections are plain YAML files. Open them in VS Code, diff them in Git, process them with any tool.

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Feature Comparison

Feature	Postman	ApiArk
REST/HTTP	Yes	Yes
GraphQL	Yes	Yes
gRPC	Yes	Yes
WebSocket	Yes	Yes
SSE	Yes	Yes
MQTT	No	Yes
Mock Servers	Yes (cloud, limited free)	Yes (local, unlimited)
Monitoring	Yes (cloud, 25 runs/mo free)	Yes (local, unlimited)
Collection Runner	Yes (25 runs/mo free)	Yes (unlimited)
Pre/Post Scripts	Yes (JavaScript)	Yes (JavaScript/TypeScript)
Testing/Assertions	Yes	Yes (YAML declarative + JS)
Environment Variables	Yes	Yes
OAuth 2.0	Yes	Yes (all grant types + PKCE)
CLI	Newman	apiark
Code Generation	Yes	Yes
Import/Export	Yes	Yes (Postman, Bruno, Insomnia, OpenAPI, HAR, cURL)
Plugin System	No	Yes (JS + WASM)
API Documentation	Yes (cloud)	Yes (local HTML/Markdown export)
Response Diff	No	Yes
cURL Import	Yes	Yes
Dark Mode	Yes	Yes (+ Black/OLED theme)
Open Source	No	Yes (MIT)

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What ApiArk Doesn't Have (Yet)

Being transparent about current gaps:

Feature	Status
Team collaboration (real-time)	Not planned — use Git
API marketplace/network	Not planned
Cloud sync	Not planned — by design
Mobile app	Not planned
Browser extension	Planned for Phase 4

We intentionally don't do cloud sync or real-time collaboration. Your team collaborates through Git — the tool developers already use.

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Migration Guide

Step 1: Export from Postman

1. Open Postman
2. Right-click your collection
3. Click Export
4. Select Collection v2.1
5. Save the .json file
6. Repeat for each collection

Step 2: Export Environments

1. In Postman, go to Environments
2. Click the ... menu on each environment
3. Click Export
4. Save each .json file

Step 3: Import into ApiArk

1. Open ApiArk
2. Press Ctrl+I or go to File → Import
3. Select your Postman collection .json file
4. Preview the import
5. Click Import
6. Repeat for environments

Step 4: Verify

• Open a few requests and compare with Postman
• Run a collection to verify tests still pass
• Check environment variables are correct
• Secrets need to be re-entered (they're not in the export)

What Transfers

• All requests (methods, URLs, headers, body, params)
• Folder structure
• Pre-request and post-response scripts (pm.* → ark.* auto-translated)
• Tests
• Environment variables (non-secret)
• Auth configurations
• Response examples

What Needs Manual Adjustment

• Postman-specific features (monitors, mock URLs pointing to Postman cloud)
• Complex pm.sendRequest() chains (may need minor syntax updates)
• Postman collection variables (converted to environment variables)
• Cloud-based mock server URLs (replace with local mock server)

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Real-World Testimonials

"Switched 50 endpoints from Postman. Import took 30 seconds. Everything just worked."

"My laptop battery lasts an hour longer without Postman eating 800MB of RAM."

"Finally, a tool that doesn't try to be a social network for APIs."

"The YAML format means I can review API test changes in the same PR as the code."

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Ready to Switch?

1. Download ApiArk
2. Import your Postman collection
3. Send your first request

Total time: under 60 seconds.