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Practical how-to guides for audio, image, PDF, and Excel tools — all processing locally in your browser. No uploads, no accounts.

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Audio Tools

How to Transcribe Audio to Text Online — Free, No Upload (2026)

Transcribe audio and video files in your browser using the OpenAI Whisper model. TXT, SRT, Markdown, or JSON output. No upload, no account, 99+ languages.

6 min read
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Audio Tools

How to Remove Vocals from a Song Online — Free, No Upload (2026)

Remove vocals from any song in your browser using the Demucs AI model. Get a clean instrumental track and isolated acapella — no upload, no account, no quality cap.

6 min read
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Audio Tools

How to Make a Karaoke Version of Any Song — Free, No Upload (2026)

Turn any song into a karaoke backing track in your browser — free, no upload, no account. AI removes the vocals and delivers a clean instrumental WAV in minutes.

6 min read
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Audio Tools

How to Convert MP4 to MP3 Free — No Upload, No File Size Limit (2026)

Extract audio from MP4, MOV, WebM, AVI, or MKV as high-quality MP3 in your browser. Set bitrate (64–320 kbps), clip a time range, edit ID3 tags, batch queue. No upload, no limit.

4 min read
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