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.
Open the Start Menu, search for , right-click it, and select Run as administrator . Click File > Open .
While modifying your hosts file gives you absolute control over outbound connections, it comes with severe trade-offs that can heavily disrupt your workflow. Loss of Cloud Features
. Enter the following command:
Open the application (found in Applications > Utilities).
Scroll to the very bottom of the document, paste your block list, and save the file (). How to Edit the Hosts File on macOS Adobe Hosts File Block List
If you are using a legitimate Creative Cloud subscription, blocking activation servers will eventually cause your apps to default to "Trial Mode" or lock you out entirely once the offline grace period expires. Security Vulnerabilities
Navigate to the following path: C:\Windows\System32\drivers\etc\
If you manage multiple machines, an internal DNS sinkhole like a Pi-hole can manage telemetry blocking across your entire local network without touching individual machine system files.
Use the arrow keys to scroll down to the bottom of the file. Paste your block list lines. Open the Start Menu, search for , right-click
sudo dscacheutil -flushcache sudo killall -HUP mDNSResponder
These endpoints check for software patches, security updates, and new version availability. ://adobe.com ://adobe.com How to View and Edit the Hosts File
If managing a team or lab, utilize the Adobe Admin Console to build custom installation packages that natively disable cloud storage, file sharing, and self-service updates cleanly at the installer level.
When an application attempts to connect to an external server, the operating system checks the hosts file first. If a domain is mapped to a local loopback address like 127.0.0.1 or 0.0.0.0 , the computer terminates the connection attempt locally. The traffic never reaches the internet. Why Users Search for Block Lists Loss of Cloud Features
: Ensure you do not have conflicting lines mapping the same domain to different IP addresses.
: If changes aren't saving, ensure your text editor was explicitly opened with Administrator or sudo privileges. Advanced Alternatives to Hosts File Blocking
A block list targeting software servers is generally utilized for three primary reasons: 1. Network Traffic Reduction
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 . 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