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4.6(72 ratings)
Private by default
2.1s avg
No install
Trusted by 100K+ users in 143 countries
Jay PadimalaMarch 20265 min read
Video Tools5 min read

MP3 Cutter — Trim Audio Online Free

Cut and trim MP3 audio files online for free. Extract audio segments with precise start and end times. guest access on supported tools only; AI uses signed-in credits.

950 words

Access and pricing

Supported tools include 5 free on-device uses per day, shared across eligible tools. On compatible devices, guest access needs no sign-in. Signed-in users also get 5 daily eligible on-device uses. AI and cloud processing use credits separately.

New accounts can claim 20 welcome credits once. Eligible offers in MiOffice can earn up to 80 reward credits; offer conditions apply.

Starter costs $6.99/month and includes 250 credits at each paid renewal plus unlimited eligible local processing. Unused credits roll over. The $2.99 Day Pass covers 24 hours of eligible local processing; AI and cloud credits are separate.

Compare tools using a representative file and inspect the export. Check supported formats, device compatibility, processing location and the displayed cost before starting. This article is published by MiOffice; consider its recommendations with that affiliation in mind.

Pricing

Access and pricing updated October 30, 2026. This editorial update does not indicate a new test run.

Cutting MP3 files is essential for creating ringtones, extracting specific segments from recordings, trimming silence from podcast episodes, and isolating samples from music tracks. With 19,000 monthly searches for "mp3 cutter," this is one of the most sought-after audio editing tools.

MiOffice cuts MP3 files in your browser using FFmpeg WebAssembly. Set your start time and duration, click process, and download the trimmed segment. No upload, no software install.

How to Cut MP3 Files

  1. 1

    Open the MP3 Cutter

    Go to the MP3 cutter.

  2. 2

    Set Start Time and Duration

    Upload your audio file. Enter the start time (in seconds) and duration (in seconds) for the segment you want.

  3. 3

    Download Trimmed Audio

    Click process. Your trimmed MP3 segment is ready to download.

Common Use Cases

Use CaseTypical DurationFormat
Phone ringtone15-30 secondsMP3
Notification sound2-5 secondsMP3
Podcast intro/outro10-30 secondsMP3
Music sample10-60 secondsMP3
Audio clip for presentation30-120 secondsMP3

Audio Editing Workflow

  • --Need to extract audio from video first? Use Video to MP3, then trim with MP3 Cutter.
  • --Volume too quiet or inconsistent? Use Audio Normalizer after trimming.
  • --Need to convert format first? Use the appropriate converter: M4A, WAV, or FLAC to MP3.

Privacy

Your audio files are processed entirely in your browser. No data is uploaded to any server. FFmpeg WebAssembly handles the trimming locally on your device.

Cut Your Audio Now

MiOffice AI is an AI-powered digital workspace studio. Create, edit, convert, compress, collaborate, and share — video, audio, images, documents, scanning, notes, screen sharing, and file transfer. the full MiOffice catalog, all in one place.

Cut AudioLocal and cloud processing have different privacy terms

Frequently Asked Questions

How do I set the trim range?
Enter the start time in seconds and the duration. For example, start at 30 with duration 60 extracts the segment from 30s to 90s.
What audio formats can I trim?
MP3, M4A, AAC, WAV, OGG, and FLAC. The output is always MP3.
Can I use this to make ringtones?
Yes. Set the start time and duration to extract the exact segment you want, then save as your phone ringtone. Most phones accept 30-second MP3 files as ringtones.
Is the trimming precise?
Yes. FFmpeg handles the cutting with sample-accurate precision. The result starts and ends at exactly the timestamps you specify.

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Jay Padimala

CEO & Founder

Jay Padimala is CEO and Founder of MiOffice, a product of JSVV SOLS LLC.

View all posts by Jay Padimala
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