DevKits for Postman Users
Love Postman but need something lighter for quick tasks? This guide shows you exactly which DevKits tools replace your Postman workflows — and what you'll still need Postman for.
The Short Version
Use DevKits For
- → Quick JSON formatting & validation
- → Decoding JWTs on the fly
- → Base64 encode/decode
- → URL encoding query params
- → Testing regex patterns
- → Looking up HTTP status codes
- → Generating UUIDs, timestamps
- → One-off API requests (manual)
Keep Postman For
- → Saved API collections
- → Team collaboration
- → Automated test suites
- → CI/CD integration (Newman)
- → Mock servers
- → API documentation
- → Environment variables
- → GraphQL & gRPC
Best approach: Keep Postman for your core workflow, use DevKits for quick utilities. They complement each other.
Your Postman Workflows → DevKits Tools
Postman: Format JSON Response
You pasted a minified JSON response to read it
Use: JSON Formatter & Validator
Paste minified JSON, get pretty-printed output with syntax highlighting. Also validates and shows errors.
Postman: Inspect JWT Token
You decoded a JWT to check its payload
Use: JWT Decoder
Paste any JWT, see decoded header and payload. Validates signature (but doesn't verify — client-side only).
Postman: Encode Request Body
You encoded data to Base64 for an API request
Encode text to Base64 or decode Base64 strings. Auto-detects input format.
Postman: Build Query Parameters
You URL-encoded params for a GET request
Encode or decode URL strings. Handles special characters and query params correctly.
Postman: Validate API Response
You checked if a response was valid JSON
Use: JSON Validator
Paste JSON, get instant validation. Shows line number and error details if invalid.
Postman: Look Up HTTP Status
You forgot what 422 means
Use: HTTP Status Codes Reference
Complete reference of all HTTP status codes. Search by code or description.
What You'll Miss (Be Honest)
Not Available in DevKits
- ✗ Saved Collections: No way to save and organize API requests
- ✗ Environment Variables: No {{base_url}} substitutions
- ✗ Automated Tests: No test scripts, no Newman CLI
- ✗ Team Workspaces: No shared collections or collaboration
- ✗ Mock Servers: Can't simulate API responses
- ✗ GraphQL/gRPC: REST APIs only (manual testing)
What You Gain
- ✓ No Installation: Opens instantly in browser
- ✓ No Account: Just open and use
- ✓ Privacy: Data never leaves your browser
- ✓ 84 Tools: Beyond API testing — JSON, JWT, regex, cron, and more
- ✓ 91 Guides: Learn concepts, not just use tools
- ✓ Free: No paid tiers for core features
Recommended Workflow: Use Both
Best practice: Keep Postman as your primary API tool. Use DevKits for quick utilities during development.
API collections, team collaboration, automated tests, CI/CD, mock servers
JSON formatting, JWT decoding, Base64, URL encoding, quick reference lookups
Faster workflow with best-in-class tools for each job