Boost audio volume directly from a URL.
Append ?url=https://example.com/clip.mp3 to this page and it will fetch the audio server-side and drop it straight into the volume booster. No upload, no CORS quirks, no clipboard juggling between tabs.
How to use
Single audio file
The page loads, fetches the audio on the server, and opens the volume booster with the file already queued, the peak level scanned, and the preview ready to play.
https://mytools.com/audio/boost-volume/by-url?url=https://example.com/clip.mp3
Multiple audio files
Every ?url= is fetched in turn, queued in the workspace, and processed one after the other once you click Boost & download. You download each file as it finishes, or grab the whole batch as a ZIP at the end.
https://mytools.com/audio/boost-volume/by-url?url=https://example.com/voice-01.m4a&url=https://example.com/voice-02.m4a
Requirements
| Protocol | http:// or https:// |
| Content-Type | audio/* or application/octet-stream |
| Source | Any publicly accessible URL |
| Per-file size | 200 MB max — the same ceiling as the regular tool |
Server-side fetch · No CORS restrictions · Up to 200 MB per file
Why use the by-URL volume booster?
Skip the upload step
When the audio already lives on a CDN, a podcast feed, or a team file-share, paste its URL into the address bar instead of downloading and re-uploading. The workspace opens with the file queued and the peak level already measured.
No CORS restrictions
The fetch happens on our server, not in the browser, so cross-origin headers and CORS policies on the source don't get in the way. If the URL is publicly reachable, it works.
Batch boost from multiple URLs
Repeat ?url= as many times as you need. Up to twenty files line up in the queue and process one after the other, just like a regular drag-and-drop batch.
Shareable and linkable
The URL is the entire session. Send the link to a teammate and they open the same audio in the booster, with the same starting point — no file transfer needed.
Fits into automated workflows
Drop the by-url link into a CMS, a Slack message, an RSS-driven script, or a webhook handler. Anything that produces a public audio URL can hand it off to the booster without a human step in the middle.
Same booster, different entry point
The same gain slider, the same presets, the same auto-limiter and A/B-compare preview as the regular tool. Once your audio is loaded, every option behaves identically — only the upload step is gone.
Build the URL
Start with /audio/boost-volume/by-url, then append ?url= followed by the full audio address. URL-encode the value if it contains special characters.
The audio loads automatically
The page fetches the audio server-side, validates that it's a real audio file, and opens the workspace with the file already queued, the peak scanned, and the preview ready.
Pick a gain and download
Set the dB on the slider (or tap a preset), listen to the live preview, hit Boost & download, and grab each file as it finishes — or download the batch as a ZIP at the end.
- 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.