Store your keys once. Build request templates with fillable fields. Get answers in a clean split-screen interface. No $14/seat pricing. No download.
The popular API tools come with baggage. DevBook skips all of it.
Postman charges per seat, per month. Teams of 5 pay $70/mo for what should be a developer utility. DevBook is free — no seats, no tiers, no surprises.
Postman's Electron app ships 300MB+ and launches like it's loading an IDE. DevBook is a web app. Open a tab, start working. Close it when you're done.
Postman syncs your collections, keys, and environments to their servers. DevBook stores your API keys in your own account. Your requests stay yours.
Every API tool wants to be a platform. DevBook wants to be a tool.
Mark dynamic parts with {{placeholders}} and DevBook turns them into input fields automatically. Fill in the blanks, hit send. No raw JSON editing, no copy-paste errors.
Store all your API keys in one secure place. DevBook matches key names to template variables automatically — your Stripe key fills every {{stripe_key}} without extra work.
Request on top. Response on the bottom — syntax-highlighted, status color-coded (200 green, 4xx orange, 5xx red), with timing in ms. Everything you need, nothing you don't.
Every template you save is indexed and searchable by name, method, and URL. Recall any previous request in seconds. No collections, no folders, no hierarchy to manage.
How does DevBook stack up against the other API tools developers reach for?
| DevBook | Postman | Bruno | Hoppscotch | |
|---|---|---|---|---|
| Price | Free | $14/seat/mo | Free (desktop) | Free / $9/mo |
| No install required | ✓ | ✗ | ✗ | ✓ |
| Template builder with fillable fields | ✓ | ✗ | ✗ | ✗ |
| API key vault with auto-fill | ✓ | ~ env vars | ~ env vars | ~ env vars |
| Split-screen response viewer | ✓ | ✓ | ✓ | ✓ |
| Syntax-highlighted JSON responses | ✓ | ✓ | ✓ | ✓ |
| Zero learning curve | ✓ | ✗ | ~ | ~ |
| No cloud lock-in | ✓ | ✗ | ✓ | ✗ |
No collections. No environments. No workspaces. Just the parts of API testing you actually use.
Paste your keys into the vault — Stripe, OpenAI, Twilio, whatever you use. Reference them with a variable name across every template. One entry, everywhere.
Define your HTTP request and mark dynamic parts with {{placeholders}}. DevBook generates a fillable form. No raw JSON editing, no config files.
Fill in the blanks, hit send, see your response instantly. Every template is saved and searchable. Build a library of the API calls your workflow depends on.
No download. No credit card. No seat licenses. The API workbench that gets out of your way.
Start your 2-week free trial →No credit card required to get started