Free Online Tools for
Developers, Creators & Marketers
Fast, privacy-first browser tools for developers, marketers, creators, and everyday tasks. Your input stays on your device where the tool supports local processing.
Developer
CSS Formatter
Prettify or minify CSS code
JSON Formatter
Format, minify, and validate JSON
Base64 Encoder
Encode and decode Base64
JWT Decoder
Decode JSON Web Tokens locally
URL Encoder
Encode URL components
UUID Generator
Generate UUID v4
Epoch Converter
Convert Unix timestamps
SHA256 Generator
Generate secure hash values
Visual Diff Checker
Compare text and code snippets
Px to Rem
Convert pixels to relative units
NTLM Hash Generator
Generate NTLM password hashes
Python UUID Generator
Generate Python-ready UUIDs
SVG to PNG Converter
Convert SVG to PNG, JPEG, WebP
UUID v7 Studio
Generate time-ordered UUIDv7s & decode timestamps
SQL IN Clause Generator
Convert lists & Excel rows to SQL IN clauses
.env to JSON Converter
Convert .env variables to JSON and vice versa
Marketing
UTM Builder
Generate trackable marketing URLs
UTM URL Parser
Inspect campaign URL parameters
QR Code Generator
Generate QR codes instantly
Image Optimizer
Compress images without quality loss
3D Mockup Lab
3D device frames for screenshots
Color Palette
Generate color schemes
Stripe UTM Builder
Track Stripe payment links with UTM tags & QR
URL Parameter Stripper
Scrub UTM, fbclid, and tracking tags from links
Creator
Discord Text Formatter
Format Discord messages with markdown
TikTok Caption Maker
Create TikTok captions with hashtags
Instagram Caption Generator
Create engaging Instagram captions
LinkedIn Text Formatter
Format text for LinkedIn
LinkedIn Post Formatter
Format LinkedIn posts with emojis
Twitter/X Post Composer
Create tweets within 280 characters
Twitter Circle Generator
Create Twitter Circle announcements
Instagram Hashtag Finder
Find curated Instagram hashtag suggestions
Instagram Bio Line Breaker
Add line breaks to Instagram bio
YouTube Title Generator
Create viral YouTube video titles
Bio Link Creator
Create Linktree-style bio pages
Facebook Post Formatter
Format Facebook posts with bold, italic, emojis
Facebook Font Generator
Create stylish fonts for Facebook
TikTok Bio Line Breaker
Add line breaks to TikTok bio
Timestamp Generator
Generate video & Discord timestamps
Bento Profile
Create a personal Bento-style profile
Discord Colored Text
Create colored text with ANSI code blocks
Bluesky Counter & Splitter
Count 300 graphemes and split Bluesky threads
Threads Character Counter
Check 500-char limits and format Threads posts
General
Guides & Resources
Practical articles for developers, designers, and marketers.
What Is Base64 Encoding? A Developer's Practical Guide
A complete guide to Base64 encoding — how it works, real-world use cases (JWT, HTTP auth, email), security considerations, and code examples in JavaScript, Python, and PHP.
How to Format LinkedIn Posts for More Engagement in 2026
The complete guide to LinkedIn post formatting — hooks, line breaks, bold text, emojis, hashtags, and post structure that drives comments, reactions, and reach.
What Are UTM Parameters? A Complete Guide to Campaign Tracking in 2026
Learn exactly what UTM parameters are, how each one works, and how to build correctly formatted tracking URLs for every marketing campaign you run.