yt-dlp is the first thing most developers reach for, and for a script on your own laptop it is a good choice: free, open source, one command. The cost shows up when the same script has to run unattended on a server, for months, against a site that keeps changing.
An open-source command-line program that downloads video, audio and subtitles from YouTube and many other sites. You run it, you host it, you keep it up to date.
A hosted service that fetches YouTube transcripts for you and, if you want, watches channels and pushes each new video's transcript to your webhook.
yt-dlp is a program. The reliability of what it returns depends on the machine you run it on, the IP address that machine has, and whether you updated it since YouTube last changed something. On your own computer at home, those three things usually line up. On a server, they often do not.
TranscriptHook is a service. You call an endpoint or receive a webhook, and handling YouTube's blocking, switching to a fallback when one path fails, and keeping up with changes all happen on our side.
Use yt-dlp when you are running a one-off job or a personal script from your own connection, when you also need the video or audio file, when you are working with sites other than YouTube, or when you want to archive content offline. It costs nothing, and if you enjoy owning the pipeline it is hard to beat.
Use TranscriptHook when the transcripts feed a product or a pipeline that has to keep running without you: an AI agent, a research tool, a newsletter workflow, a monitoring job. You skip the proxy bills, the upgrade chores and the glue code for scheduling, de-duplication and retries.
The yt-dlp command leaves a file on disk. The API call returns the transcript directly.
yt-dlp --skip-download --write-auto-subs --sub-langs en \
--convert-subs srt "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
# then: find the .srt file, strip timing lines, remove the
# repeated lines auto-captions produce, and store the textcurl "https://transcripthook.com/api/transcript?url=https://youtube.com/watch?v=dQw4w9WgXcQ" \
-H "X-API-Key: your_api_key"
# returns JSON: { "available": true, "text": "...", "segments": [...] }| Capability | yt-dlp | TranscriptHook |
|---|---|---|
| Getting a transcript | ||
| Fetch captions for one video | ✓ Writes a subtitle file | ✓ Returns JSON |
| Timestamped segments | ✓ In the subtitle file | ✓ |
| Clean text, no repeated auto-caption lines | ✕ You clean it | ✓ |
| Transcribes audio when no captions exist | ✕ | ✕ |
| Download the video or audio file | ✓ | ✕ |
| Sites other than YouTube | ✓ Hundreds | ✕ YouTube only |
| Running it in production | ||
| Works from a cloud or hosting IP | ✕ Frequently blocked, you add proxies | ✓ Handled for you |
| Keeps up when YouTube changes | ✕ You upgrade | ✓ Handled for you |
| Fallback when one fetch path fails | ✕ You build this | ✓ |
| Servers to run and monitor | Yours | None |
| Monitoring and delivery | ||
| Detect new videos on a channel | ✕ You build this | ✓ Core feature |
| Webhook push with the transcript | ✕ | ✓ |
| Hold and retry until captions are ready | ✕ You build this | ✓ Up to 24h automatic |
| Keyword filters and alerts | ✕ | ✓ |
| MCP server for AI agents | ✕ | ✓ |
| Cost | ||
| Price | Free | Free tier, then $9/mo Starter |
| Hidden costs | Proxies, servers, your time | None beyond the plan |
Prototype with yt-dlp, then move only the part that runs on a server to an API once the maintenance costs more than the plan. The free tier lets you test that switch with one channel and ten on-demand lookups a month, no credit card. For the other common alternatives, see the guide to every way to get a YouTube transcript, the YouTube Data API comparison and the transcript API comparison.
One endpoint for transcripts, or let new videos come to you. Free tier, no credit card.
No credit card · Free tier forever