Can I vibecode AudioFetcher?

KINDA · weekend project

price $6/moyou'd save $72/yrbuild time one sittingcategory 🎬 audio & videoreplaced by 0 people

The core loop is genuinely one-shottable: a small local UI, yt-dlp for the fetch, ffmpeg for the encode, files land in a folder. What is not a one sitting is everything that makes a public converter feel reliable week after week · YouTube bot checks, cookies/PO tokens, geo blocks, fair queues, abuse protection, and a hosted path so non-technical people never open a terminal. Build the personal script; do not expect one prompt to replace a maintained public service.

the prompt

Build me a personal YouTube-to-MP3 tool to replace AudioFetcher for one user on my laptop. Requirements:

- Python 3.11 + a tiny localhost Flask or Starlette app; one page with a URL field,
  quality select (128 / 192 / 256 / 320 kbps), and a Convert button.
- On submit, shell out to yt-dlp to pull best audio only, then ffmpeg to CBR MP3 at the
  chosen bitrate. Write files into ./downloads with a safe title filename.
- Support a single video URL and a playlist URL. For playlists, show a checkbox list of
  titles first (yt-dlp --flat-playlist --print), then convert only checked items one by one
  with a simple progress log on the page (SSE or polling).
- Put YT_COOKIES_FILE and optional HTTP_PROXY in .env; pass them to yt-dlp when set.
  If yt-dlp returns LOGIN_REQUIRED or bot-check text, show that error plainly and tell me
  to export cookies from a logged-in browser.
- Cap each job at 3 hours of media; reject live streams. No accounts, no cloud, no queue
  service for other users · this is just me.
- Out of scope: multi-tenant fair queues, Stripe/Pro billing, magic-link auth, public
  abuse protection, mobile apps.
- README: install yt-dlp + ffmpeg, how to export Netscape cookies, and a blunt note that
  YouTube blocks many datacenter IPs so a home machine or cookies may be required.

$ open in your agent (prompt prefilled, you press enter) or copy it raw

why people still pay

Power users already run yt-dlp. Everyone else pays to paste a link in a browser and get an MP3 without installing tools or debugging LOGIN_REQUIRED. The money is convenience plus the permanent maintenance of staying ahead of YouTube client checks, not a novel audio algorithm.

what you lose

xhosted UI for non-technical users

xplaylist preview with per-track checkboxes

xpriority queue and 320 kbps Pro path

xsomeone else fighting YouTube bot checks, PO tokens, and geo blocks

xemail magic-link Pro auth and fair multi-user queueing

share on X ↗"I just replaced AudioFetcher ($6/mo) with one prompt"

the escape hatch

Don't feel like building it? These folks already made it free.

yt-dlpUgly, terminal-shaped, and still the downloader every prettier app quietly depends on.183kaug 2026open source↗PParabolicA polite desktop face on yt-dlp; paste a playlist, pick MP3, go make tea.6.8kjun 2026open source↗TTartubeA gloriously busy desktop queue for whole channels and playlists.3.1kjul 2026open source↗

all 3 free alternatives to AudioFetcher →· no votes, no pay-to-list · just what's real

the numbers

AudioFetcher pricing

plan	monthly	annual (per mo)	what you get
free	$0/user	$0/user	3 conversions/day; individual videos up to 20 minutes; up to 256 kbps; 0 playlist conversions; standard queue.
pro	$6/user	$4.92/user	Unlimited conversions; playlists; priority queue; 320 kbps output; videos up to 12 hours.
supporter pass	custom	—	30 days of unlimited conversions; playlists; priority queue; 320 kbps; videos up to 12 hours.

free tier3 conversions/day; individual videos up to 20 minutes; up to 256 kbps; 0 playlist conversions; standard queue.

billingPro is monthly + annual; Supporter Pass is a one-time $5 purchase for 30 days.

hidden costsThe service's official terms require users to convert only content they own or have permission to use.