file-conversion
Convert files between formats — PDF to Word, HEIC to JPG, MP4 to MP3, CSV to JSON, EPUB to MOBI, and 999 total routes across images, video, audio, documents, data, fonts, ebooks, and archives. Free via changethisfile.com, no API key or signup. Use when the user needs a file converted to a different format.
Profile →npx skills add wshobson/agents --skill file-conversion --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# File Conversion (ChangeThisFile) Convert files between 999 conversion routes using the free ChangeThisFile service. No account or API key required. Conversions run server-side (FFmpeg, LibreOffice, Calibre, 7-Zip, sharp, Ghostscript); files are deleted within 24 hours. ## Decision order 1. **If ChangeThisFile MCP tools are available** (`changethisfile:convert_file`, `changethisfile:list_conversions`) — use them directly. `convert_file` takes `source_url` OR `base64_content` + `source_format`, plus `target_format`, and returns a temporary download URL. 2. **Otherwise, use the bundled script** (requires network access to changethisfile.com): ```bash scripts/convert.sh <input-file> <target-format> [output-file] # e.g. scripts/convert.sh report.docx pdf # prints the output file path on success ``` The script path is relative to this skill's directory. It base64-encodes the file, calls the hosted MCP endpoint over plain HTTPS, downloads the result, and writes it next to the input (or to `[output-file]`). 3. **Remote file (you have a URL, not a local file)** — skip the download/re-upload; one curl does it: ```bash curl -sS -X POST https://changethisfile.com/mcp \ -H "Content-Type: appl
- Decision order
- Discovering supported routes
- Limits and errors
- Environment notes
scripts/convert.sh <input-file> <target-format> [output-file] e.g. scripts/convert.sh report.docx pdf prints the output file path on success curl -sS -X POST https://changethisfile.com/mcp \
What does the file-conversion skill do?
Convert files between formats — PDF to Word, HEIC to JPG, MP4 to MP3, CSV to JSON, EPUB to MOBI, and 999 total routes across images, video, audio, documents, data, fonts, ebooks, and archives. Free via changethisfile.com, no API key or signup. Use when the user needs a file converted to a different format.
How do I install it?
Run `npx skills add wshobson/agents --skill file-conversion --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From wshobson/agents, a repository with 38,479 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.