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Encode, Decode & Transform

Fast, private, browser-based tools for developers. No sign-up required — just paste and go.

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transform.js

const text = "Hello, World!";

// Encode to Base64

const encoded = btoa(text);

→ "SGVsbG8sIFdvcmxkIQ=="

// Decode back

const decoded = atob(encoded);

→ "Hello, World!"

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Encoding & Decoding

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Base64 Encode

Convert plain text or binary data into Base64 format instantly.

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Base64 Decode

Decode Base64 strings back to readable text or binary data.

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URL Encode/Decode

Encode or decode URLs, query strings and special characters.

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HTML Entity Encode/Decode

Convert HTML special characters to entities and back.

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Hex ↔ ASCII

Convert between hexadecimal and ASCII text representations.

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Security & Tokens

JWT Decode

Inspect and verify JSON Web Token payloads and headers.

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Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from any text.

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UUID Generator

Generate UUID/GUID v1, v4, and v5 identifiers instantly.

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Certificate Decoder

Parse and inspect SSL/PEM certificates in your browser.

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SAML Decoder

Decode Base64-encoded SAML responses and inspect XML.

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Developer Utilities

Unix Timestamp

Convert between Unix timestamps and human-readable dates.

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Markdown Preview

Write Markdown and see the rendered preview in real time.

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Why DecodeEncode?

Built for developers who value speed and privacy.

Lightning Fast

Client-side processing means zero latency. Results appear as you type — no server round-trips.

100% Private

Your data never leaves your browser. No logs, no tracking, no storage. Complete privacy guaranteed.

Always Free

No accounts, no paywalls, no limits. Open and available for everyone, forever.

Works Everywhere

Fully responsive and browser-based. Use on any device — desktop, tablet, or mobile.

Ready to get started?

Pick a tool and start transforming your data in seconds. No sign-up, no downloads, completely free.

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