● ENCODING · 39 tools

Encoding Tools Online

Encode, decode and inspect data online for free — Base64, URL percent-encoding, HTML entities, JWT decoding and handy lookups. All processing happens in your browser; nothing is stored.

39 free tools free forever runs in browser

BASE64 ENCODE open full tool →

Hello, World!

RESULT ✓

SGVsbG8sIFdvcmxkIQ==

↳ act on the page: the flagship tool is one paste away — no second click to get value.

What do you want to do?

Encode text to Base64 Base64 Encoder → Decode a JWT JWT Decoder → Escape a URL URL Encoder → Look up an HTTP status HTTP Status Codes →

Most used

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E Base64 Encoder

Encode text or files to Base64 online for free. Supports standar...

E JWT Decoder

Decode and inspect JSON Web Tokens (JWT) online for free. View h...

E URL Encoder

Percent-encode URLs and strings online for free. Convert special...

All Encoding tools

36 more

Image to Base64 cURL Converter URL Parser HTML Entity Encoder HTML Entity Decoder Base64 Decoder URL Decoder JWT Encoder Text to Hex Hex to Text Text to Binary Binary to Text Base32 Encode Base32 Decode CORS Checker CSP Checker Set-Cookie Checker User Agent Parser HTTP Status Codes HTTP 301 Moved Permanently HTTP 302 Found HTTP 304 Not Modified HTTP 400 Bad Request HTTP 401 Unauthorized HTTP 403 Forbidden HTTP 404 Not Found HTTP 405 Method Not Allowed HTTP 409 Conflict HTTP 418 I'm a Teapot HTTP 422 Unprocessable Entity HTTP 429 Too Many Requests HTTP 500 Internal Server Error HTTP 502 Bad Gateway HTTP 503 Service Unavailable HTTP 504 Gateway Timeout MIME Type Lookup

Encode, decode or inspect — which encoding tool?

TOOL USE WHEN RESULT

Base64 Encoder Embedding binary in text (data URIs, headers) Base64 string

URL Encoder Putting a value in a query string Percent-encoded text

JWT Decoder Debugging an auth token Header + payload + expiry

Encoding guides

Guide

How JWT authentication works

Guide

What is Base64 encoding (and when to use it)

Guide

URL encoding explained (percent-encoding)

Encoding tools FAQ

Base64 Encode/Decode, URL Encode/Decode, HTML Entity Encode/Decode, JWT Decoder, URL Parser, HTTP Status Codes and MIME Type lookup — all browser-based.

It converts binary data to a text-safe format for systems that handle only text — data URIs, Authorization headers, and email attachments.

It splits a token into header, payload and signature, decodes the Base64url header and payload to JSON, and flags expired tokens via the exp claim.

No. Everything is processed locally in your browser and never sent to a server.

Related categories

Hash · 8 MD5, SHA & HMAC digests. JSON · 25 Format, validate, diff & convert JSON. Text · 29 Case, counting, diff & regex.