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.
: For NVIDIA users, set "Power management mode" to Prefer maximum performance and "Low Latency Mode" to Ultra .
> Properties > Compatibility > Check "Disable fullscreen optimizations". 4. Specialized Fixes for Modern Hardware If you have a high-end PC but still experience lag: Monitor Refresh Rate : PES 2017 often struggles with monitors above
This feature often causes FPS drops in older games like PES 17.
Meskipun sudah rilis bertahun-tahun, PES 2017 masih menjadi favorit karena -nya yang solid dan ringan. Namun, dengan hadirnya
Force the game to use your dedicated graphics card properly.
: There are "Antilag" updates (often provided as CPK files) that can disable crowd rendering or skip replays to maintain 60 FPS.
: For NVIDIA users, set "Power management mode" to Prefer maximum performance and "Low Latency Mode" to Ultra .
> Properties > Compatibility > Check "Disable fullscreen optimizations". 4. Specialized Fixes for Modern Hardware If you have a high-end PC but still experience lag: Monitor Refresh Rate : PES 2017 often struggles with monitors above
This feature often causes FPS drops in older games like PES 17.
Meskipun sudah rilis bertahun-tahun, PES 2017 masih menjadi favorit karena -nya yang solid dan ringan. Namun, dengan hadirnya
Force the game to use your dedicated graphics card properly.
: There are "Antilag" updates (often provided as CPK files) that can disable crowd rendering or skip replays to maintain 60 FPS.
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 . 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