Welcome to TinyFn

TinyFn is a REST API with 500+ utility endpoints for the stuff you’re tired of building. UUID generation, email validation, string manipulation, encoding, hashing, formatting — all battle-tested and ready to ship.

Quickstart

Get your API key and make your first request in under a minute

API Reference

Browse all 500+ endpoints with interactive examples

Why TinyFn?

Stop reinventing the wheel

Every project needs UUID generation, email validation, string formatting. Instead of writing (and testing) the same utilities again, call our battle-tested endpoints.

Works with any stack

REST API means it works with JavaScript, Python, Go, Ruby, PHP, curl — anything that can make HTTP requests.

Fast and reliable

Sub-50ms response times. 99.9% uptime SLA. Built on edge infrastructure for low latency worldwide.

Generous free tier

100 requests/month free. No credit card required to get started.

Example Request

curl "https://api.tinyfn.io/v1/generate/uuid" \
  -H "X-API-Key: your_api_key"

Response

{
  "uuid": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "version": 4,
  "variant": "RFC 4122"
}

Popular Endpoints

Category	Endpoints	Examples
Generators	UUID, password, token, Lorem ipsum	`/v1/generate/uuid`, `/v1/generate/password`
Validation	Email, URL, phone, credit card	`/v1/validate/email`, `/v1/validate/phone`
Encoding	Base64, URL encode, hex	`/v1/encode/base64`, `/v1/encode/url`
Hashing	MD5, SHA256, SHA512, bcrypt	`/v1/hash/sha256`, `/v1/hash/bcrypt`
String	Slug, camelCase, truncate, reverse	`/v1/string/slug`, `/v1/string/camelcase`
Math	Prime check, factorial, GCD, statistics	`/v1/math/is-prime`, `/v1/stats/mean`
Fun	Dad jokes, magic 8-ball, fortune	`/v1/fun/dad-joke`, `/v1/fun/8ball`

See all 500+ endpoints

Browse the complete API reference

Getting Started

Guides

Introduction

Welcome to TinyFn

Quickstart

API Reference

Why TinyFn?

Example Request

Popular Endpoints

See all 500+ endpoints

​Welcome to TinyFn

Quickstart

API Reference

​Why TinyFn?

​Example Request

​Popular Endpoints

See all 500+ endpoints

Welcome to TinyFn

Why TinyFn?

Example Request

Popular Endpoints