Guides & Tutorials
Practical, step-by-step guides for everyday tasks — from formatting JSON to shrinking images. Every guide pairs with a free tool.
How to Format and Validate JSON Online
Learn why messy JSON breaks your workflow and how a formatter with instant validation saves you time.
5 min read MediaHow to Compress an Image to 100KB Without Losing Quality
The exact settings to hit email limits and fast page loads while keeping images crisp.
6 min read EverydayHow to Convert Units Fast: Length, Weight and Temperature
Master the most common conversions people search every day — and skip the mental math.
4 min read DeveloperHow to Encode and Decode Base64 Online
What Base64 is, when to encode or decode, and why it is not a way to hide secrets.
5 min read DeveloperUUID Generator: What Is a UUID and How to Create v4 Online
Why developers reach for UUIDs over sequential IDs, and how to batch-generate them.
5 min read DeveloperText Case Converter: Camel Case, Snake Case & More Explained
The naming conventions behind every codebase, and how to switch between them without typos.
4 min read WritingWord Counter: Count Words, Characters and Reading Time Online
Why word, character and reading-time counts matter for essays, SEO and social posts.
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