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Start with the included audio example or choose a compatible audio file from your device.
Use this audio trimmer online to select the exact part of a recording you want to keep, preview the selected range and create a new audio file directly in your browser. Start with the included example or load your own audio, then adjust the trim points and optional playback settings.
Drag the turquoise handles across the waveform or enter precise start and end times. Preview the range before processing, make optional adjustments and export the finished selection as WAV.
The waveform gives you a visual map of the complete recording. The turquoise handles define the part that will remain in the new file. Everything before the first handle and after the second handle is excluded from the processed result.
You can drag the handles for quick visual editing or type the start and end positions in seconds when you need a more precise cut. The selected duration updates automatically as the range changes.
If you want to explore signal level and mixing controls after preparing a clip, try the Interactive Online Audio Mixer. The Audio Tools for Recording, Mixing, and Ear Training collection also includes additional ways to examine and work with audio.
Play Selection starts from the chosen trim point and stops at the end of the range. This makes it easier to check whether a word, note, breath, transient or musical ending has been cut too early.
Recordings often contain material that is not needed in the final file: silence before the performance, conversation after a take, count-ins, setup noise, an unused ending or simply a longer section than you want to keep.
Trimming creates a new file containing only the selected portion. It is useful for extracting a musical phrase, shortening spoken audio, isolating part of a rehearsal, preparing a reference clip or removing unnecessary material from the beginning and end.
Vocalists working with recorded takes can also read how long vocal recording can take, while musicians preparing for their first session may find the First Time Recording Studio Guide helpful.
Start with the included audio example or choose a compatible audio file from your device.
Drag the trim handles or enter start and end positions numerically.
Listen to the selected section and refine the boundaries before processing.
Create the processed selection and save the resulting audio as a WAV file.
A focused audio trimmer is useful when you do not need a complete multitrack editor. The main task is straightforward: identify the useful portion of a recording, verify the boundaries and create a new file from that range.
The waveform represents changes in audio amplitude over time. Taller areas contain larger sample values, while narrow or nearly flat areas represent lower signal levels. This can make broad transitions between silence, speech, musical passages and stronger transients easier to locate.
A waveform is a visual guide rather than a substitute for listening. The safest way to choose a musical or spoken edit is to use the shape to find the approximate location and then audition the selection.
Drag the left turquoise marker to choose where the new file begins. Drag the right marker to choose where it ends. The darker portions of the waveform show the audio that will be removed.
Clicking elsewhere on the waveform moves whichever trim boundary is closer to the clicked position. For fine control, use the numeric fields below the waveform.
Level changes multiply the amplitude of the processed samples. A value below 100% reduces the signal. A value above 100% increases it, although increasing amplitude can push large peaks beyond the normal digital range. The exporter therefore limits the final WAV samples to the available range.
For a broader hands-on view of faders and signal relationships, the Mixer Console Simulator provides a different kind of interactive exercise.
Original preserves the source channel arrangement. Mono combines available channels into one channel. Left Only uses the first channel, while Right Only uses the second channel when the source contains one.
These controls can be useful when you are examining a stereo recording and need a simplified mono file or want to inspect one side independently.
The speed control changes the playback rate used while creating the processed result. Faster values shorten the result and raise its pitch; slower values lengthen it and lower the pitch.
The pitch control provides an additional resampling ratio in semitone steps. Because this implementation uses local resampling rather than a time-stretching algorithm, pitch and duration remain mathematically connected.
These controls are useful for experiments and reference clips. When the goal is detailed musical production rather than a simple browser edit, you can explore the broader role of music and production or read about recording blues and country performances.
Phase controls here perform polarity inversion: the selected channel samples are multiplied by −1. Invert All changes every output channel, while the left and right options affect the corresponding channel when available.
Polarity inversion does not move audio forward or backward in time. It simply reverses the sign of the affected samples.
Spoken recordings often need simple boundary edits: removing preparation before the first word, cutting excess silence, extracting one passage or cleaning up the material after the final phrase.
For related recording topics, see voiceover recording and commercial audio recording.
With music, the edit point may need to preserve an attack, natural decay or final resonance. A visually quiet region is not always truly silent, so listen around both boundaries before exporting.
Instrumental performers can continue with information about instrument recording, while artists working on complete songs can explore song demo production.
When you select a file, the browser reads it into memory and the Web Audio API decodes the available audio channels. The waveform, trim calculations and processing then use the decoded sample data.
The browser must support the selected file's audio format in order to decode it. WAV and MP3 are common choices, while support for other formats can vary by browser.
When you press Create Trimmed Audio, the selected source range is copied into a new sample buffer. The chosen channel, level, speed, pitch and polarity settings are applied locally, and the resulting PCM samples are encoded into a WAV Blob.
You can listen to that result before saving it. If you want to make another cut from the processed audio, Edit This Result loads the new buffer back into the editor.
Artists who organize recording trips may also find the North Jersey recording guide or the New York recording guide useful when planning a focused session.
This implementation uses browser file access, Web Audio decoding and local JavaScript processing. Selecting your own audio does not require the page code to upload that file to a server for trimming.
Not every edit requires a full production environment. If you only need to remove the beginning or end, extract one section, adjust a basic property and save the result, a focused browser tool keeps the process compact.
More complex work can involve multiple recordings, automation, effects, detailed timing decisions and a complete mix. For that broader production context, see mixing, mastering and music production.
If you are preparing recorded material as part of a larger project, the Audio Content Recording Services overview covers several types of music and spoken audio production.
Continue with practical audio tools and recording resources for music, vocals and other recorded material.
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