Utility Tools
Collage maker, grid cutter, meme generator, color picker, and more
Utility Tools — everything in your browser
A focused set of everyday image utilities: compress and optimize photos, encode Base64, rename files in bulk, generate favicons, ASCII art, CSS sprites, Open Graph images, placeholders, image diffs, and similarity reports. Every tool is free and runs locally.
How to use these tools
- Choose a utility such as Compress, Base64, Batch Rename, Favicon, CSS Sprite, OG Image, or Placeholder.
- Upload files or enter the values the tool asks for; most utilities run instantly.
- Download the generated files, code snippet, or ZIP archive.
Frequently asked questions
Are these utilities safe for client or confidential files?
Yes. Processing happens locally in your browser; files are not uploaded. As with any browser tool, avoid opening untrusted pages while handling sensitive material.
Can I batch-process files?
Many utilities accept multiple files and return a ZIP. Check each tool's upload area for the batch option and any per-file limits.
Why does a Base64 string become larger than the original file?
Base64 encodes binary data as text and adds roughly 33% overhead. It is useful for embedding small assets in HTML or CSS, not for compressing large files.