Free Local Conversion + AI Audio Workflows
Convert Audio Locally. Then Clean Speech, Split Stems, and Transcribe with AI.
WaveSieve converts audio and supported video formats locally in your browser with no upload required. When the file needs more than conversion, use AI to clean speech, split stems, transcribe recordings, or apply a polished finish.
Convert between audio formats. Free and processed in your browser.
Convert up to 5 files at once — free, right in your browser.
Examples
Hear the change before you use your own audio
Short samples show what WaveSieve helps with: cleaner speech, separated stems, readable transcripts, and clear credit costs.
Before and after speech cleanup
Compare a noisy voice recording with the cleaned version so the benefit is obvious before signup.
Before cleanup
Room noise and low clarity
After cleanup
Cleaner speech sample
Separated vocal and backing tracks
Listen to the mixed clip, then compare the isolated vocal and instrumental results.
Original mix
Voice and backing together
Vocal stem
Voice-focused result
Instrumental stem
Backing track result
Know the cost before processing
For a 3-minute file, the credit estimate is simple and shown before the job starts.
Audio Cleanup
3 billable minutes
Vocal Remover
3 billable minutes
Speech to Text
3 billable minutes
Demo clips are short examples. Actual results depend on the source recording.
Start free. Use credits only when you need AI.
Format Converter is free and runs locally. AI tools are billed by minute, not by file: Cleanup 3 credits/min, Vocal Remover 3 credits/min, Speech to Text 1 credit/min.
Need more credits?
Top up anytime — no subscription required.
FAQ
Frequently asked questions
Use Cases
Made for real audio work
WaveSieve fits everyday tasks across voice, music, editing, and content workflows.
Podcasts & Interviews
Challenge: Noisy recordings with room echo, hum, and background distractions
Clean noisy recordings, improve clarity, and transcribe speech into usable text
Music Practice & Remixing
Challenge: Need isolated vocals or instrumentals for karaoke, practice, or remix prep
Split vocals and instrumentals for karaoke, practice tracks, remix prep, and editing
Voice Notes & Meetings
Challenge: Incompatible formats and noisy recordings from calls and meetings
Convert formats, remove background noise, and turn spoken content into text
Content Repurposing
Challenge: Turning audio into captions, summaries, or searchable notes takes too long
Use transcription to turn audio into captions, summaries, and searchable notes
Quick Format Prep
Challenge: Platform rejects your audio format or codec
Convert files into the formats your workflow needs — without uploading them
Education & Lectures
Challenge: Long lecture recordings are hard to review and share with students
Transcribe lectures into searchable text, enhance audio clarity for better playback
Your audio, professionally processed
Convert formats for free, then use AI to clean speech, split stems, transcribe recordings, or polish audio when needed. Try it now — no software to install.
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