Podcast Chapter Markers
Add chapter markers to a podcast MP3. Apple Podcasts, Pocket Casts and Overcast all show them as jump points.
Drop your audio file here
or click to browse a file
Audio is copied through unchanged — only ID3v2 CHAP frames are added.
Chapters
- 01
- 02
About this chapter marker tool
Modern podcast players show clickable chapters in the playback bar so listeners can skip to specific topics. The chapters live inside the MP3 file as ID3v2 CHAP frames — once written, every podcast app picks them up automatically.
Drop your finished episode in, add timestamp + title pairs, and download the chapter-tagged MP3. No upload.
How to add podcast chapters
- 01
Drop in your MP3
Already-mastered podcast episode.
- 02
Add chapters
For each chapter, enter the timestamp (mm:ss or h:mm:ss) and the title.
- 03
Render and upload
Apple Podcasts, Pocket Casts, Overcast etc. show chapters automatically.
Why use chapter markers
- Listeners can jump to specific topics without scrubbing
- Improves discoverability — many apps show chapter titles in the episode page
- Audio is bit-identical — only metadata frames are added
- Works in Apple Podcasts, Pocket Casts, Overcast, Castro and most modern apps
- Free, private, no install
- No watermark, no signup
Chapter markers FAQ
Will Spotify show chapters?
Spotify reads chapters from RSS-feed-level data, not from inside the MP3. For Spotify chapters, configure them in your podcast host's dashboard. Apple, Overcast and most others read from the MP3 directly.
How many chapters can I add?
There's no hard cap. 5–15 is typical for a one-hour episode; podcasts use one per topic shift.
Will the audio quality drop?
No. The audio stream is copied through unchanged — only metadata frames are added.
Is my file kept private?
Yes. We don't analyse or index your file.
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