Public audio or video
Open the original post and check that the spoken recording plays without paid login before trying its URL.
SUBSTACK TRANSCRIPTION
Transcribe public Substack audio and video posts
20 transcriptions + 60 min / month
Try without an account
Handles long recordings
No install
Source file kept temporarily, then deleted automatically
THE FINISHED RESULT
A transcript you can actually work with
Search the text, jump back to the exact moment in the video, fix a name, then export the format your workflow needs.
TXTSRTDOCXJSON
Example transcript
Long recordings keep processing in the background.
Search the finished transcript using clickable timestamps.
Export the result as text, subtitles, Word or JSON.
SOURCE GUIDE · October 13, 2026
Does the Substack post expose playable public media?
A public article URL alone is not sufficient. LongScribe needs retrievable audio or video, not just a newsletter title. Subscriber-only streams and private RSS feeds do not become public by pasting a URL.
Publication RSS is different
A Substack publication may have a public /feed, but this does not mean every newsletter contains podcast audio.
Private podcast feeds
Substack can issue personalized subscriber RSS feeds. Do not share private feed URLs or expect bypass of their access controls.
Signed-in Free: 60 minutes across 20 recordings monthly for eligible jobs. A no-account demo may be preview-only. Source, duration and plan limits apply. Premium: $4.99/month per month, 5,000 minutes across 500 recordings (subject to job eligibility).
Official documentation: Substack public RSS · Substack subscriber podcast RSS. Reviewed October 13, 2026. Verify access permission and transcript completeness before sharing.
| Decision | Public Substack media | Unavailable/paid media |
|---|---|---|
| Input | Public playable speech media | Text-only or restricted newsletter |
| URL | Accessible post containing audio/video | Login/paywall-only post |
| Source type | Podcast/video with retrievable media | Article without audio |
| RSS | A public feed may identify episodes | Private subscriber feed remains private |
| Fallback | Authorized saved audio/video file | Cannot manufacture speech from prose |
| Job eligibility | Normal source/plan limits apply | No media to transcribe |
| Export | Eligible completed job supports TXT/SRT/DOCX/JSON | No transcript export without a job |
What kind of Substack post works?
Start with a public video or podcast post containing actual spoken audio. Text-only newsletters, teasers without media and deleted recordings cannot produce a speech transcript.
Public publication feed versus subscriber podcast feed
Substack offers publication /feed RSS URLs and also personalized private podcast RSS subscriptions. The public feed is not proof that a particular article includes playable media.
What to do when a post fails
Check whether the exact post is public, still plays audio and exposes retrievable media. Restricted or removed posts are not bypassed. If permitted, upload the original saved media from the creator.
Check the result before sharing
Use transcript timestamps to confirm guest names, quote context and full recording duration. TXT, DOCX, SRT and JSON exports require an eligible completed signed-in job; demos may show a short preview.
Frequently asked questions
Can I transcribe a text-only newsletter?
No. Speech transcription requires actual audio/video; a written newsletter already contains text.
Will any public Substack URL work?
No. It needs retrievable playable speech media and must satisfy source and quota checks.
Can LongScribe open subscriber-only podcast RSS?
It does not bypass private or paid access controls. Private RSS feeds are subscriber-specific.
What if Substack media is blocked?
Ask the owner for an authorized media file to upload, subject to normal size and duration limits.
Can I export Substack subtitles to SRT?
Yes for eligible completed signed-in media transcriptions, alongside TXT, DOCX and JSON.