A whole toolkit, one place. Pick the tool that turns your next task into a small one.
Find your starting pointFree tools. Everyday possibilities.
What do you need to do?
Convert files, edit images, and simplify your next task.
Try these:
Explore the toolkit
Free · No signup
All toolsLoading tools…
Choose a tool. Add your file. Get it done.
Find the right tool
from our collection.Add your file
and choose your settings.Get your result
and get on with your day.
No accounts to create. No software to install. Just get things done.
Keep your momentum
From “to do”
to 
“all done.”
Great tools get out of your way.
Here’s how we keep things simple.
Drop in your file and choose your settings. A different format, a smaller size, or a fresh edit.
Try an image conversionDownload the result and carry on creating. No account forms standing between you and your file.
Bring your documents togetherYour best work deserves your attention. Not another file format. Not another download. Just the freedom to keep creating.
A little help, from Zutilium.
Free online tool
Skills Library
A living library of revised skills for AI agents
Upload a file
Drop your file here
or click anywhere to browse
Revised skills only
The public catalog starts at revision 2. Imported source material stays in the revision workspace until a substantive revision passes the publication checks.
Find the right workflow
Search names, descriptions and tags, filter by category, and inspect a skill’s exact instructions before downloading it.
Trace every revision
Each release includes its upstream source, revision summary, change list and evaluation results. New releases retain the recorded revision history.
Portable Markdown
Download the published SKILL.md and review its requirements before adding it to an agent’s supported skills directory. Installation depends on your agent.
How to use the Skills Library
- 1
Search for a workflow or choose a category in the published catalog.
- 2
Open a skill to read its instructions, revision changes, evaluation evidence and upstream attribution.
- 3
Download its published SKILL.md and place it in a skill directory supported by your agent, preserving any required source notices.
- 4
Return to the library to inspect newer revisions as the source material and model requirements evolve.
What people use this tool for
- Find a revised workflow for an AI coding assistant.
- Check what changed from an upstream skill before adopting it.
- Maintain a revision queue and evaluate updates before releasing them.
- Keep source attribution and evaluation evidence with a versioned skill.
Frequently Asked Questions
Does this catalog include unchanged upstream skills?
No. Source imports enter a private revision queue. A skill must have a substantive revision, start at revision 2 or later, and pass the publication checks before appearing in this catalog.
Is this the official skills.sh website?
No. This is an independent Zutilium tool for maintaining and distributing revised skills. Each skill identifies its upstream repository and retains the applicable attribution.
Are evaluation results a guarantee for every AI model?
No. Evaluation results describe the checks recorded for that release. Review the instructions and model context, and test the skill with your own agent and workflow.
How are new revisions published?
Administrators import eligible source material into the workspace, create a revision and run the configured evaluation process. A revision is published automatically only when its required checks pass; unsuccessful attempts stay out of the public catalog.
Does Download SKILL.md install a skill for me?
No. It downloads the published Markdown file. Add it using the installation process supported by your agent and check whether the skill needs additional files or tools.