Audio Merger

graphic_eq interview_recording_01.mp3 Ready Duration: 04:12.50 • File size: 5.8 MB • 320 kbps MP3 swap_horiz Replace file timer 00:00.00 Selection: 00:45.00 – 02:30.00 (01:45.00) 04:12.50 Discarded 00:00.00 check_circle […]

interview_recording_01.mp3
Ready

Duration: 04:12.50 • File size: 5.8 MB • 320 kbps MP3


00:00.00

Selection: 00:45.00 – 02:30.00 (01:45.00)

04:12.50

Discarded
00:00.00

Retained Selection (01:45.00)
Start
End
Discarded
04:12.50
00:00.00
00:30.00
01:00.00
01:30.00
02:00.00
02:30.00
03:00.00
03:30.00
04:00.00
04:12.50



Clip duration:
01:45.00





100%


Exports only the selected 01:45.00 section.

Before You Start


Before You Start
• Technical specifications & runtime parameters

Supported files & size

Accepts standard MP3 files up to standard browser memory limits. Confirm playback before trimming.

Editing scope

Designed for single-span boundary trimming. Produces one standalone output clip.

Processing & export

Runs within your browser session. Exports direct MP3 without secondary transcoding.

Step-by-Step Workflow

How to cut your MP3 online


Start cutting ↑

01

Upload audio file

Add a supported audio recording and check that it opens correctly in the selected tool.


Check supported input formats
02

Select a section

Drag caliper handles or type exact timestamps to set your start and end points, then preview playback to confirm seamless entry and exit.


Check the selection boundaries
03

Export your clip

Export the selected section, then listen to the saved clip and check its boundaries and sound quality.


Check your exported clip

Precision Trimming

Choose the exact section with boundary calipers

Select the passage you want to keep using the available timing controls. Listen at both boundaries so the clip retains complete words and natural transitions.


  • Check the start and end boundaries

  • Clear visual dimming for discarded intro and outro margins
Boundary Caliper Zoom
Span: 00:45.00 → 02:30.00
Start
End
00:00.00 (Cut off)


Selected Keep Zone (01:45.00)

04:12.50 (Cut off)
Processing and Export
320 kbps MP3

Preview selection

Listen at the selection boundaries and adjust them to keep complete words and natural transitions.



01:45.00


Check Output Quality

Export settings and source encoding can affect the saved audio. Listen to the result before reusing it.

Output:
MP3 • 44.1 kHz • Stereo
Audio Fidelity

Listen before exporting your clip

Preview the selected audio and listen at both boundaries. After exporting, check the saved clip for complete words, clean transitions and acceptable sound quality.


  • Pre-listen loop controls to verify start and end fades

  • Check the exported file and playback before reuse

Practical Applications

When to use Audio Cutter

Simple, fast trimming for day-to-day audio editing tasks.

Shorten voice recordings & interviews

Trim intro banter, background mic checks, false starts, and trailing dead air from phone voice memos and meetings.

Create ringtones & audio alerts

Isolate your favorite musical hooks, catchy choruses, or distinct sound effects for customized phone alerts and alarms.

Clean up podcast & speech excerpts

Extract specific quotes, soundbites, and monologue highlights for social media teasers, presentations, or study clips.

Format Reference

Audio formats comparison

How MP3 compares to other popular audio containers for web and production workflows.

Format Typical use File size / quality considerations Related tool or guide

MP3
(MPEG Layer 3)
Quick sharing, voice clips, mobile downloads Lossy compression, ~1MB/min at 128kbps, ideal for fast web export

Active tool
WAV
(Waveform PCM)
High-fidelity production, audio archival Uncompressed, ~10MB/min, maximum acoustic detail
Audio Converter
M4A
(MPEG-4 AAC)
Streaming voice memos, AAC containers High compression efficiency, smaller footprint than MP3 at matching quality
Format Support

Frequently Asked Questions

Common questions about Audio Cutter

How do I choose the section to keep?
Drag the vertical teal caliper handles in the timeline ruler to frame your clip boundaries. Everything between the left and right handle represents the active selection that will be preserved when exported.
Can I enter exact start and end times?
Use the timing controls available in the current tool to set the start and end points. Preview the selection and check the saved clip; the displayed time precision does not establish the cutting accuracy.
Can I cut several sections into separate files?
Audio Cutter exports a single contiguous selection. If you need to chop a continuous audio file into multiple individual tracks in one pass, please use the dedicated Audio Splitter.
Will cutting affect the audio quality?
Exporting may re-encode the audio. Matching the source bitrate does not guarantee a lossless result; listen to the saved clip to check its quality.
What audio formats are supported?
Supported formats and codecs depend on the current tool. Check its input and export requirements before adding a file.

Suite Ecosystem

Continue working with your audio

Audio Splitter

Divide a recording into multiple separate clips at custom timestamps.


Audio Merger

Combine multiple audio tracks into one seamless, unified file.


Audio Mixer

Layer voiceovers and background music tracks together concurrently.


Explore all audio editing tools →