Convert any audio to MP3 directly from a URL
Append a ?url= parameter with the address of an audio file and this page fetches it server-side, then opens it in the converter ready to encode. Because the fetch happens on our server and not in your browser, CORS restrictions don't apply.
How to use
Single audio file
Pass one ?url= parameter. The page loads, fetches the audio server-side, and opens the converter with the track pre-loaded. Pick a preset and hit Convert.
https://mytools.com/audio/audio-to-mp3/by-url?url=https://example.com/track.flac
Multiple audio files
Repeat the ?url= parameter to batch. All files are loaded in one go and queued in the file list. Convert them as a batch and download individually or as a single ZIP.
https://mytools.com/audio/audio-to-mp3/by-url?url=https://example.com/a.wav&url=https://example.com/b.m4a
Requirements
| Protocol | http:// or https:// only |
| Content-Type | audio/* or application/octet-stream |
| Formats | WAV, FLAC, OGG, M4A, AAC, OPUS, AIFF, WMA, MP3, and most other audio codecs |
| Source | Any publicly accessible URL — no authentication headers are sent |
Server-side fetch · No CORS restrictions · Any ?url= becomes an MP3
Why use the URL entry point?
Skip the upload step
When you already have an audio file hosted somewhere — a podcast CDN, a cloud bucket, a download link — pass its URL directly instead of saving the file locally and re-uploading it.
No CORS restrictions
The fetch runs on our server, not in your browser, so cross-origin rules don't block it. Any publicly reachable audio URL works, regardless of the host's CORS configuration.
Batch convert from multiple URLs
Repeat ?url= as many times as you need. All tracks land in the converter as a single batch, share the same quality preset, and can be downloaded together as a ZIP.
Shareable and linkable
The URL is the session. Share a single link with a teammate or a script, and they'll open the same audio files in the converter — ready to encode, zero manual setup.
Fits into automated workflows
Drop the URL pattern into a curl command, a Zapier step, a cron job, or any tool that can open a browser tab. Perfect for pipelines that produce audio files and need an MP3 for the next step.
Same converter, different entry point
Everything else works exactly like the main tool — quality presets, advanced options, batch progress, per-file downloads, browser-only encoding. Only the upload step is replaced.
Build the URL
Start with /audio/audio-to-mp3/by-url, append ?url= and the full address of your audio file. For multiple files, repeat &url= for each.
The audio loads automatically
The page fetches the audio server-side and hands it to the converter. You see the file in the list with its name, format, and size — ready to convert.
Convert and download
Pick a quality preset, open advanced options if needed, hit Convert. Grab each MP3 individually or download the whole batch as a ZIP.
- Audio files are never stored — fetched and forwarded in a single request.
- URLs and audio are not logged, inspected, or retained.
- No sign-up needed — construct the URL and go.