Here are some categories of tools that can save you hours every week:

1. JSON & Data Formatters

Cleaning up messy JSON, validating structure, or converting between JSON and CSV is something every backend and frontend developer runs into daily.

2. Image Utilities

Resizing, compressing, or converting images without uploading them to a third-party server (privacy matters) is increasingly important.

3. Text & Regex Tools

Testing regular expressions live, formatting text, or generating lorem ipsum are small tasks that add up.

4. Developer Utilities

Things like UUID generators, base64 encoders/decoders, and hash generators are used constantly but rarely deserve their own app.

If you're looking for a single place that bundles these utilities together — fast, free, and privacy-focused (no unnecessary uploads or accounts required) — I've been using ToolsWeave for exactly this. It's a growing collection of everyday web tools for developers and digital creators.

What tools do you rely on daily? Drop them in the comments!