Related Tools
AAC Cutter
Trim AAC by start and end. Waveform handles, presets, fade in/out. Free, client-side. No upload.
Cutting AAC files trims one segment by start and end time. Useful for trimming podcasts, streams, or AAC recordings to a single clip. All processing is client-side.
When to use AAC Cutter vs other formats
Use the cutter for one trimmed segment; use the splitter for multiple segments. Cut AAC when your source is AAC. Convert to MP3 for maximum compatibility. Keep AAC for quality and modern device support.
Compatibility
Trimmed output stays AAC (often M4A). Plays on Apple, Android, and most players. Client-side only.
Quality considerations
Cutting at boundaries preserves quality when no re-encoding is needed. Use high bit rate when re-encoding.
Example use cases
- Trim an AAC podcast or recording to one segment.
- Extract a short AAC clip for sample or preview.
- Cut silence or unwanted parts from an AAC file.
- Create a ringtone or alert from AAC.
- Keep only a portion of an AAC for sharing or backup.
Best practices
- Set start and end precisely using the waveform handles or the cursor (Start at cursor / End at cursor).
- Use a short fade in (0.5–1 s) and fade out (1–1.5 s) to avoid abrupt edges.
- Preview the cut with the result waveform before downloading.
- For lossless output use WAV or FLAC; for smallest size use MP3 or M4A at your chosen bitrate.
- Keep AAC as output when your source is already AAC to avoid unnecessary re-encoding.
Powered by Web Audio API and optimized processing.
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