About DevPulse
Fast, free utilities for developers — in the browser and in your pocket. No accounts. No tracking. Built by developers who got tired of every tool requiring a sign-up.
Why This Exists
Every developer has a tab graveyard: a dozen bookmarked "free" tools that are actually ad-stuffed, login-walled, or slow. You need to format a JSON blob from an API response, and the first result wants your email address. You want to decode a JWT, and the tool loads 400KB of analytics scripts before it does anything.
DevPulse exists because the right answer is simpler: just build the tool, run the logic in the browser, and serve it fast. No accounts. No server-side processing of your data. No analytics tracking your every paste.
We started with a handful of tools we used ourselves — JSON formatter, Base64, UUID generator — and kept adding the ones we kept searching for every few weeks. The Android apps came from the same place: needing to check a DNS record or scan a port from a phone without installing something that wants location access and a Google sign-in.
What We Build
30+ Browser Tools
JSON formatting and validation, Base64 encoding, JWT decoding, regex testing, password generation, hash generation, URL encoding, CSS minification, YAML formatting, color conversion, cron parsing, and more — all running client-side with instant results.
Every tool also has a free REST API endpoint so you can integrate it into scripts and workflows without building the logic yourself.
Android Apps
A suite of Android apps covering the things developers and network engineers need from a phone: SSH and Telnet terminal access, port scanning and network discovery, DNS lookups, uptime monitoring, API testing, traceroute, BLE inspection, and more.
All free. All offline-capable for core functionality. No subscriptions, no account requirements.
How We Build
Client-Side First
When the logic can run in the browser, it does. No round-trip to a server means instant results and zero data exposure. Your JSON stays on your machine.
No Accounts, Ever
You shouldn't need an account to format JSON. We don't do user accounts, email collection, or newsletter sign-ups disguised as feature gates.
Security by Default
The Android apps are built with AES-256 credential encryption, TOFU host key verification, ProGuard obfuscation, and minimal permissions. We don't cut corners on security to ship faster.
The Android App Suite
Privacy Promise
- ✓ No user accounts or registration
- ✓ Tool input data is never stored on our servers
- ✓ No third-party analytics or behavioural tracking
- ✓ Android apps: no telemetry, no crash reporting, no usage data
- ✓ Google AdSense is used for ads (may use cookies for personalisation — see Privacy Policy)
Free API
Every browser tool has a REST API endpoint. Use them in scripts, CI pipelines, or your own applications — no API key required for the free tier.
POST /api/json-format
{"text": "{\"key\":1}", "indent": 2}
POST /api/hash
{"text": "hello", "algorithm": "sha256"}
Read the API docs →
Get in Touch
Questions, bug reports, or tool suggestions: [email protected]
We read everything. We don't always respond quickly, but we do read it.