Developer Tools

Format and validate JSON payloads, encode and decode Base64 data, and URL encode parameters. Clean utilities built for developers and engineers.

100% Free to Use

Instant Browser Processing

Confidential & Private

Available Tools (5)

Updated for 2026

POPULAR

JSON Formatter

Format and validate JSON data.

Open Tool

Base64 Encoder

Encode text into Base64 format.

Open Tool

Base64 Decoder

Decode Base64 data into readable text.

Open Tool

URL Encoder

Encode text for safe use inside URLs.

Open Tool

URL Decoder

Decode URL-encoded text.

Open Tool

About ToolTower Developer Tools

ToolTower Developer Tools provide everyday utilities essential for web development, debugging, and data interchange. Validate and prettify complex JSON payloads, decode Base64 strings, and encode URI components safely.

⚡ Client-Side Speed

Built to execute right in your web browser. No queueing behind congested shared servers or waiting for slow downloads.

🔒 Zero-Knowledge Security

Your files, calculations, and data stay on your device. When you close your tab, processing memory is immediately released.

Related Tool Categories

View SEO Tools →View TEXT Tools →View CALCULATORS Tools →