Developer Tools
JSON, Base64, and dev utilities. All tools run 100% locally in your browser with no limits, paywalls, or privacy risks.
Available Developer Tools (12)
JSON Formatter
Format, validate and minify JSON.
Base64 Encoder / Decoder
Encode or decode Base64 strings.
Password Generator
Strong, secure random passwords.
Regex Tester
Test regular expressions with live matches.
UUID Generator
Generate secure random UUID v4 values.
Color Converter
Convert HEX to RGB, HSL and RGBA.
Hash Generator
SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
Code Minifier
Minify HTML, CSS and JavaScript instantly.
XML Formatter & Validator
Pretty print, indent, validate syntax, and minify XML data.
SQL Query Formatter
Format and beautify complex SQL queries with custom casing and indentation.
CSV to JSON Converter
Convert CSV tables to JSON arrays and JSON objects to CSV spreadsheets.
Unix Timestamp Converter
Convert epoch timestamps to human readable dates and local times with live ticking clock.
Why Use FashionDeck Developer Tools?
Developer Tools on FashionDeck are built for speed, simplicity, and absolute data privacy. Unlike traditional cloud-hosted utilities that require uploading your documents, images, or code to external servers, our tools operate directly inside your browser using modern WebAssembly, Canvas API, and HTML5 JavaScript features.
Zero Server Storage
Your files and copy stay strictly on your local device at all times.
No Account Needed
Immediate access without registrations, credit cards, or hidden fees.
Mobile Friendly
Works smoothly across desktop monitors, laptops, tablets, and smartphones.
Developer Tools Guides & Articles
Password Generator: Complete Usage Guide
Create cryptographically random passwords that no dictionary or pattern attack can guess.
JSON Formatter: Complete Usage Guide
Pretty-print, validate and minify JSON locally — with clear errors instead of cryptic offsets.
Base64 Encoding and Decoding: A Practical Guide
What Base64 is, why it exists, where to use it (and where not to), the URL-safe variant, Unicode pitfalls, and why it is not encryption.
JSON Formatting Tips for Developers
Read messy API payloads faster, avoid the classic syntax traps, and know when to pretty-print versus minify. Practical JSON habits for working developers.
Frequently Asked Questions about Developer Tools
Are all Developer Tools on FashionDeck free?
Yes, every tool in our developer tools directory is 100% free with unlimited usage.
Are my documents or files uploaded anywhere?
No. All file processing happens entirely inside your local web browser tab. Nothing is uploaded or stored on any server.
Can I use these tools on my mobile phone?
Yes! All developer tools are designed responsively for mobile, tablet, and desktop devices.