🚀 Now with 10 endpoints — all free to try
Developer APIs
that just work
Production-ready REST endpoints for hash generation, UUIDs, JSON formatting, QR codes, and more. No signup required. Start with 100 free requests/day.
One curl. That's it.
No API key needed for free tier. Just send a request.
curl -X POST https://devtools-api-eosin.vercel.app/api/hash \
-H "Content-Type: application/json" \
-d '{"text": "hello world", "algorithm": "sha256"}'
{
"hash": "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9",
"algorithm": "sha256",
"inputLength": 11
}
const res = await fetch('https://devtools-api-eosin.vercel.app/api/hash', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ text: 'hello world', algorithm: 'sha256' })
});
const data = await res.json();
console.log(data.hash);
import requests
resp = requests.post(
"https://devtools-api-eosin.vercel.app/api/hash",
json={"text": "hello world", "algorithm": "sha256"}
)
print(resp.json()["hash"])
10 Endpoints. Zero bloat.
Every endpoint is standalone, stateless, and ready for production.
/api/hash
MD5, SHA-1, SHA-256, SHA-512. Send text, get hash. Supports hex & base64 output.
/api/uuid
v1 (time-based) and v4 (random) UUIDs. Bulk generation up to 100.
/api/password
Crypto-strength passwords. Configurable length, charset, entropy estimation.
/api/json/format
Format, validate, and minify JSON. Configurable indentation.
/api/json/validate
Validate JSON with detailed error messages and line numbers.
/api/base64/encode
Encode text or binary to Base64. URL-safe mode available.
/api/base64/decode
Decode Base64 to text. Validates input, handles URL-safe encoding.
/api/urlencode
Percent-encoding with component, full URL, and RFC3986 modes.
/api/qrcode
Generate QR codes as PNG or SVG. Custom size, error correction levels.
/api/regex
Test patterns, get matches, capture groups, and validation results.
Built for developers who ship
⚡
Edge-fast
Deployed on Vercel Edge Network. Sub-50ms responses globally. No cold starts.
🔒
Privacy-first
No data stored. No analytics. No cookies. Your input is processed and discarded.
📖
Open source
Every endpoint is open source on GitHub. Audit the code, fork it, self-host it.
🧩
Zero dependencies
No SDKs to install. Standard REST + JSON. Works with any language or framework.
📊
Usage dashboard
Track your API usage in real-time. Rate limit headers on every response.
🌍
CORS enabled
Full CORS support. Call from browser, server, mobile, or CLI. No proxy needed.
Simple, transparent pricing
Start free. Upgrade when you need more.
Free
$0/mo
Perfect for personal projects and prototyping
- 100 requests/day
- All 10 endpoints
- Standard response time
- Community support
- No API key required
Pro
$4.99/mo
For apps in production that need reliability
- 10,000 requests/day
- All 10 endpoints
- Priority edge routing
- API key + usage dashboard
- Email support (24h)
- Rate limit headers
Business
$19.99/mo
For teams and high-volume applications
- Unlimited requests
- All 10 endpoints
- 99.9% uptime SLA
- Dedicated API keys
- Priority support (4h)
- Custom endpoints on request
Ready to build something?
100 free requests/day. No credit card. No signup. Just code.
Try the API →