The cleaned file is the free file.Same model, same result, no quality held back for a paid tier.
By ShinobiTools Team · Last updated: August 2026
Clean up an episode before it goes out — hum, hiss, fans and traffic pulled down while the voice stays natural. Free, and there's no daily limit if you're running a whole backlog.
CleanGrab runs its own open-source speech-enhancement model on our own hardware, so there's no per-file fee and no watermark: drop in a recording and get a cleaned voice back as a 192 kbps MP3 plus a lossless WAV. No account, no sign-up, and your upload is deleted the moment it's processed.
This is where the free noise tools that cap you at an hour of audio a day fall over: a back-catalogue clean-up or a batch of guest interviews can blow past that in one sitting. CleanGrab has no daily cap — upload the next episode the moment the last one finishes. See the limits comparison against Adobe Podcast if you've hit that wall before.
Heavy room echo and reverb are a harder, separate problem: CleanGrab reduces light echo, but it will not fully erase a very reverberant room. We'd rather say that plainly than promise something the tool can't do.
CleanGrab is tuned for voice and speech — podcasts, interviews, calls, voice memos, lectures. On music or other non-speech audio the result can be poor, and the tool will tell you when it couldn't detect clear speech instead of handing you a mangled file.
Cleaning up a single recorded call rather than a whole episode? See cleaning up a Zoom or Teams recording. Publishing the episode as a video too? See cleaning audio for a YouTube video.
Once the episode is clean, a transcript is often the next step — for show notes, for accessibility, or just to search back through old episodes. ScribeGrab turns the cleaned recording into a full transcript, or the episode summary tool pulls out the topics and highlights ready to paste into show notes.
Yes — there's no daily or monthly cap, so you can run one episode after another. The only limit is 2 files processing at once per visitor, which just keeps the queue moving.
Yes, as long as it's one mixed file — it separates the combined voice track from the room behind it. It doesn't isolate one speaker from another on a single track.
Heavy room echo and reverb are a harder, separate problem: CleanGrab reduces light echo, but it will not fully erase a very reverberant room. We'd rather say that plainly than promise something the tool can't do.
MP3, WAV, M4A, FLAC, OGG, and common video files, up to 45 minutes per upload. You get back a cleaned MP3 (192 kbps) and a lossless WAV.
Yes — no account, no watermark, no daily or monthly cap. Adobe Podcast, Krisp and Cleanvoice all limit free usage to push you toward a paid tier. Here the free version cleans recordings up to 45 minutes with no daily cap and no watermark; the optional pass only raises that ceiling, it never lowers it. The ads around the tool cover running our hardware.
No. Your upload is deleted the moment it's processed and the cleaned file is wiped from the server within 45 minutes. Nothing is stored, shared or used to train anything — see privacy.