FastlyConvert

FastlyConvert

AI-Powered Audio Tools

AI Audio Tools – Conversion, Extraction & Transcription

Online audio tools to convert audio formats, extract sound from video and transcribe speech to text with AI. Fast and secure processing.

check_circle 100% Free psychology AI-Powered speed Fast Processing language Multi-language

Audio Tools Online (Convert, Cut, Compress & Transcribe)

Need to change an audio format, shorten a clip, reduce file size, or turn speech into text? FastlyConvert's Audio Toolkit brings the most common audio workflows into one place, with practical presets for podcasts, meetings, music, and social media. Pick a tool above, upload your file, choose a quality setting, and download the result in seconds.

What you can do here

  • Convert formats: MP3, WAV, M4A, AAC, FLAC and more
  • Trim & edit: cut intros/outros, keep the best part of a recording
  • Compress: shrink files for email, WhatsApp, or web upload
  • AI transcription: audio to text for notes, captions, and summaries

Quick guide: choose the right format

  • MP3: best compatibility and small size (great for sharing)
  • AAC/M4A: better quality at similar size vs MP3 (great for mobile)
  • WAV: uncompressed, best for editing (large files)
  • FLAC: lossless compression, high quality with smaller size than WAV

Privacy & Security

To process your file, FastlyConvert temporarily uploads it to our servers, converts it, and then automatically deletes it within 24 hours. Transfers use HTTPS encryption. We do not sell your files or use them to build public datasets. If you need immediate deletion assistance, contact us at support@fastlyconvert.com. In most cases, files are deleted automatically after processing, so your projects do not stay on our servers longer than needed.

Accuracy & Tips

Transcription and translation quality depends on the clarity of the audio. For best results, use recordings with minimal background noise, clear speech, and a stable volume level. If the file contains multiple speakers, overlapping voices, or heavy music, the output may include errors or miss some words.

Output format is TXT only (subtitle formats like SRT/VTT are not supported). Uploaded files are automatically deleted after 24 hours.

Best practices

  • Use clear recordings (close to the microphone, low noise).
  • Prefer one speaker at a time; avoid overlapping voices.
  • If possible, trim long silence or irrelevant parts before uploading.
  • Choose the correct spoken language (if available) to improve accuracy.
  • Review the TXT output and make quick edits as needed.

FAQs

  1. What output formats are supported? TXT only. Subtitle formats (SRT/VTT) are not supported.
  2. What input formats are supported? Audio: MP3/WAV/M4A/OGG/FLAC/AAC. Video: MP4/MOV/AVI/MKV/WEBM.
  3. When are files deleted? Uploaded files are automatically deleted after 24 hours.
  4. Is this free to use? Yes, most tools are free. Some advanced features may require an upgrade.

Copyright & acceptable use: Please upload only files you own or have permission to use. Do not upload illegal, infringing, or sensitive personal content.

What You Can Do with FastlyConvert Audio Tools

transcribe

AI Audio to Text

Upload audio or video files and let AI transcribe speech to accurate text. Perfect for meetings, interviews, podcasts and voice notes.

music_note

Audio Converter

Convert between MP3, WAV, M4A, FLAC and other formats so your audio works on any device or app.

video_library

Video to MP3 / Video to Audio

Extract clean audio tracks from your videos. Great for saving lectures, music performances or talks as audio-only files.

movie

MP4 to MP3

Quickly turn MP4 videos into MP3 files for offline listening or sharing.

Why Choose FastlyConvert for Audio?

Professional audio processing engine you can trust

psychology

AI-Powered Transcription

Use AI speech recognition to turn audio and video into accurate text in multiple languages.

high_quality

High-Quality Conversion

Preserve original audio quality while converting formats or extracting sound from video.

security

Privacy & Security

Your files are processed securely and kept only for the time needed to convert and deliver the result.

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Free to Start

Core audio tools and AI transcription are available without installing any software or creating an account.

Popular Audio Tools

Quick access to our most popular audio tools

Specialized Audio Converters

Format-specific converters for common audio conversions