🔌 10+ Production-Ready APIs • Free Tier Available
Free APIs for Developers
Production-ready REST APIs with generous free tiers. Email validation, QR codes, text analysis, PDF generation and more. Start building in minutes.
10+
APIs Available
500
Free Requests/mo
<50ms< /div>
Avg Response
99.9%
Uptime
Validate email addresses in real-time. Syntax checking, MX record
verification, disposable email detection, and role-based email filtering.
MX Records
Disposable Check
Role Detection
Bulk Mode
Extractive text summarization with keyword extraction, readability scoring,
and configurable summary length. Process articles, papers, and documents.
Extractive
Keywords
Readability
Batch
VADER-like sentiment scoring with negation handling, emotion detection, and
confidence levels. Analyze reviews, tweets, and customer feedback at scale.
VADER Scoring
Emotions
Negation
Batch
Generate QR codes with custom colors, sizes, and error correction levels.
Supports URLs, text, vCards, WiFi, and more. Returns PNG or SVG.
Custom Colors
PNG/SVG
vCard
WiFi
Generate cryptographically secure passwords and passphrases. Strength scoring,
bulk generation, customizable character sets and length.
Crypto-Secure
Passphrases
Strength Score
Bulk
Convert between 40+ world currencies with live exchange rates. Batch
conversions, historical rates, and offline fallback support.
40+ Currencies
Live Rates
Batch
Fallback
Convert HTML to PDF with custom headers, footers, page sizes, and margins.
Generate invoices, reports, and documents programmatically.
HTML to PDF
Custom Headers
Page Sizes
Margins
Create short links with custom codes, click tracking, expiry dates, and
analytics. Full dashboard for link management and performance insights.
Custom Codes
Click Tracking
Expiry
Analytics
Extract structured data from any website. CSS selectors, JSON output,
pagination support, and headless browser rendering for JavaScript-heavy sites.
CSS Selectors
JSON Output
Pagination
JS Render
Capture full-page or viewport screenshots of any URL. Custom dimensions,
delays for dynamic content, and high-DPI Retina support.
Full Page
Custom Size
Retina
Delay
Start in 30 Seconds
One API key. Simple REST calls. Works with any language.
JavaScript
// Validate an email address const response = await fetch('https://email-validator-api.up.railway.app/validate', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ email: 'user@example.com' }) }); const data = await response.json(); console.log(data); // { valid: true, mx_valid: true, disposable: false, score: 0.95 }