Rescreen / Free tools / YouTube description generator
YouTube description generator
Turn your tutorial's transcript into an accurate description you can edit and copy.
- 1Add your content
- 2Review description
- 3Copy to YouTube
Add your video or transcript
Your recording stays on this device. The first run downloads a speech model and may take a few minutes.
Only your transcript and audience are sent to an AI service, and nothing is stored. Links, chapters and your call to action stay on this page.
Writing your description
Review your description
No chapters added. To add them, make a list with the YouTube chapter generator, then choose Change input.
How to use the YouTube description generator
Add your content
Choose a recording to transcribe on your device, open a subtitle file, or paste a transcript or a short note about the topic.
Add your own details
Optionally enter links, a chapter list, your audience and a call to action. Links and chapters are checked before anything is written.
Generate the draft
Choose Generate description. AI reads the text and writes an opening, what viewers will learn and what they need, usually in a few seconds.
Edit and copy
Change anything in the draft, check the character count, then copy the plain text into the description box in YouTube Studio.
What goes into the description
The draft opens with one to three sentences on what the video shows. YouTube shows only the start of a description before viewers expand it, so the useful words come first. After that come short lists of what viewers will learn and what they need before starting, in the order the video teaches them.
Your resources, chapters and call to action follow, exactly as you typed them. The result is plain text with ordinary line breaks, so it keeps its shape when you paste it into YouTube Studio. YouTube allows 5,000 bytes, about 5,000 characters of English, and does not accept angle brackets in a description. Accented letters and emoji count for more than one. The editor counts as you type and tells you if either rule is broken.
How the tool keeps a draft accurate
For everything it writes, the AI must also quote the words in your transcript that support it. The tool looks for each quote in your text and removes any line whose quote is not there. It also removes any line with a web address, a clock time or a number your transcript never used.
Your links and chapters never go to the AI, so it cannot change an address or a timestamp. If you add no chapter list, the description has no chapters: the tool does not estimate times from an untimed transcript. Instructions spoken in a transcript are treated as text to describe and cannot make the tool do anything else.
Read the draft before you publish. AI can still word something less precisely than you would, and it reads speech, so it cannot see an action that happens only on screen. A short topic note gives a short draft, because the tool will not guess what a video like yours usually covers. Add the transcript for a fuller result.
Add chapters and links
Enter one link per line, with a full address starting with https://. A label on the same line is kept: “Starter code: https://github.com/you/project”. Only add links you have checked yourself.
Chapters use one timestamp and title per line, starting at 00:00, with at least three chapters at least ten seconds apart. Those are YouTube's chapter rules, and the tool checks them before writing. If you don't have a list, the YouTube chapter generator can draft one from a timed transcript, and you can paste the result straight in.
Official guidance
YouTube's description limits and chapter rules. Checked 5 November 2026.
Write the description after the final edit
Trimming a section can remove something the description promises and moves every chapter after it. Finish your edit first, then generate the description from the final version. If you are preparing your next walkthrough, Rescreen's screen recorder captures the demonstration and your narration together, and a clear spoken introduction gives this tool better material to work from.
Frequently asked questions
Is the generator free?
Yes, and you don't need an account. Each address can make 20 drafts an hour. The tool also has a daily limit across all visitors, so it can be busy at times. If it is, your text stays on the page and you can try again later.
What happens to my transcript?
To write the draft, your transcript text and audience are sent to Rescreen, which passes them to an AI provider (Anthropic, or Google if Anthropic is unavailable) and returns the result. Rescreen does not store them or keep them in logs. Usage analytics record that a draft was made, never its contents. Your recording, links, chapters and call to action are never sent.
Does it upload my video?
No. Speech recognition runs on your device after its model downloads, and your recording never leaves it. When the transcript is ready you can check it first; nothing is sent until you choose Generate description.
Can I use a YouTube link?
Not in this tool. Use your local recording, a subtitle file or a pasted transcript. Reading captions through YouTube's API needs permission from the channel.
What if a draft cannot be written?
Your text stays on the page and the tool says what to do next. A transcript that is mostly music or noise gives the AI nothing to describe, so add clearer text or a sentence about the topic. The longest transcript it reads is about two hours of speech.
What languages does it write in?
It writes in the language of your transcript. The section headings, such as “What you will learn”, are in English, and you can change them in the editor.
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