10-band EQ · Browser-local
This online equalizer adjusts bass, mids, and treble across ten bands. Hear changes, then export WAV locally with no upload or account.
10-band equalizer workspace
Live spectrum · Presets · WAV export
Files stay local
Shape bass, mids, and treble with a local 10-band EQ. MP3, WAV, FLAC, M4A, AAC, or OGG up to 80 MB.
Nothing is uploaded
Three local steps
Use the online equalizer in three steps: choose one file, start from Flat or a preset, adjust available bands while listening, then render the current curve to WAV.
Choose one MP3, WAV, FLAC, M4A, AAC, or OGG file up to 80 MB. The online equalizer decodes it inside this browser tab and builds only the frequency bands below the decoded working sample rate’s Nyquist limit. Invalid or undecodable input stops before a filter graph is created.
Start with Flat, Bass Boost, Vocal Clarity, or Treble Boost, then adjust any available band from -12 dB to +12 dB. The online equalizer updates the active Web Audio filters without rebuilding the playback graph. Use Bypass to hear the source while every visible gain remains saved.
Play, seek, repeat, or loop a revealing section while the lightweight spectrum responds. Check loud passages for tonal balance, then create a 16-bit WAV. Preview and export share the same frequencies, Q values, gain order, and compressor; WAV export adds a final 0.98 peak ceiling before encoding.
Controls with a clear job
The online equalizer keeps the active curve, available bands, Bypass state, and boosted-peak protection visible while audio plays.
The online equalizer provides fixed centers at 31, 62, 125, 250, and 500 Hz plus 1, 2, 4, 8, and 16 kHz. Each gain moves in half-decibel steps across a -12 dB to +12 dB range. Fixed bands make settings understandable and repeatable without exposing filter type, arbitrary frequency, or Q controls that would add complexity to a focused first release.
Flat returns every band to zero. Bass Boost lifts low bands, Vocal Clarity emphasizes the midrange where speech and lead vocals often carry detail, and Treble Boost raises upper bands. Once you move a band, the online equalizer labels the state Custom. Presets remain starting points, and the live preview decides whether a setting suits this specific recording.
Bypass temporarily makes the live filters and compressor transparent while keeping the sliders and chosen preset values intact. This lets you compare processed and source playback at the same position without rebuilding the file state. The online equalizer export uses the visible gain settings even when Bypass is active, and the export panel states that behavior before you create a WAV.
A lightweight 28-bar spectrum samples an analyser at a reduced update rate, providing visual feedback without running drawing work in the audio rendering thread. After the filters, the online equalizer uses the same compressor in real-time and offline graphs. Audio below its threshold remains unaffected; WAV export also applies a final 0.98 peak ceiling before encoding.
Practical workflows
These online equalizer workflows connect common listening problems to specific bands and a repeatable Bypass check.
If a recording feels heavy or cloudy, lower 125, 250, or 500 Hz in small steps and compare Bypass. The online equalizer cannot identify “mud” automatically, because the useful range depends on the voice, instrument, room, microphone, and mix. A narrow A–B loop around the problem section helps you judge whether clarity improved without thinning the complete file.
Start with Bass Boost, listen on speakers or headphones you understand, and reduce the preset if kicks, bass notes, or voice plosives dominate. The online equalizer bands at 31 and 62 Hz affect very low energy that small devices may reproduce poorly. Use the spectrum as feedback, then trust repeated listening at a sensible level before exporting the changed WAV.
Vocal Clarity emphasizes selected mid bands and trims some extremes, giving you a quick reference for interviews, lessons, and vocal-heavy music. Move 1, 2, and 4 kHz gradually because too much gain can make consonants or instruments harsh. The online equalizer processes the complete mix; it does not isolate a speaker, remove background music, or edit one stem separately.
Browser or player equalizers often affect playback only. This online equalizer can render the active gains into a separate WAV for review in another app. Keep the original file and describe the preset or Custom settings in your own project notes, because the current page has no account, saved preset library, cloud history, mastering chain, or automatic project recall.
Preview checklist
Use the online equalizer to make small, isolated moves, then compare Bypass on a revealing A–B loop before rendering.
Move one band by two or three decibels and compare before adding more gain. Large boosts can consume headroom quickly and make neighboring ranges feel quieter by comparison. The online equalizer provides up to 12 dB for deliberate cases, but the available range is a boundary rather than a recommendation to maximize every slider.
Use low bands for weight, mid bands for body and presence, and high bands for brightness or air, then listen after each decision. If many bands move together, return to Flat and rebuild the curve. The online equalizer Custom label helps identify that you have left a named starting point, while Bypass reveals the cumulative result.
A quiet introduction may not reveal harshness, boom, or clipping risk created by a curve. Mark A and B around a loud chorus, close voice, cymbal hit, or dense mix and replay it. The online equalizer updates filter gains live, making that short loop a faster quality check than repeatedly scanning the entire recording.
A digital filter center must remain below half the working sample rate. When the browser’s decoded buffer makes 8 or 16 kHz unavailable, the online equalizer disables that band and explains why while leaving valid bands usable. Converting a file to a higher sample rate elsewhere does not create missing high-frequency detail, so avoid treating resampling as restoration.
Download the WAV and play it through the headphones, speakers, editor, presentation, or rehearsal system that matters. The online equalizer produces a new 16-bit file and cannot predict downstream normalization, player EQ, device coloration, or room acoustics. Keep the source so you can return to Flat and make a smaller, traceable revision.
Input, output, and privacy
The online equalizer relies on browser decoding, disables bands at the working Nyquist limit, exports WAV, and keeps audio local.
The picker accepts MP3, WAV, FLAC, M4A, AAC, and OGG up to 80 MB when the browser can decode the codec. Available EQ bands depend on sample rate: any center at or above Nyquist is disabled. The online equalizer reports these local capability limits and never sends a difficult file to a server-side decoder or converter.
Offline rendering uses the same fixed frequencies, gains, Q value, filter order, and compressor configuration as preview, then applies a final 0.98 peak ceiling. Bypass is a comparison control, so export applies the visible curve. The online equalizer outputs WAV only and does not recreate the source codec, metadata, bitrate, loudness target, MP3, M4A, FLAC, AAC, or OGG container.
Audio bytes, decoded PCM, spectrum values, band gains, presets, and rendered output remain inside the browser session. The online equalizer has no audio upload endpoint, account, cloud storage, payment, or saved preset sync. Analytics receive coarse tool actions while excluding filename, exact duration, waveform, gain values, preset choice, spectrum, audio, and error stack.
Related browser tools
Pitch, timing, direction, and tone are different audio decisions. Open the tool whose controls match the result you need, then keep every selected file inside the same browser-local workflow.
Change the musical key by semitones or cents and adjust tempo independently when frequency balance is not the task.
Open Pitch Changer →Change playback and export duration from 50% to 200% while Signalsmith keeps the original pitch setting fixed.
Open Audio Speed Changer →Reverse every audio sample or only a marked A–B range, compare the source, and export the full local WAV.
Open Audio Reverser →FAQ
Direct answers about the online equalizer, browser support, local processing, controls, WAV export, and the limits to check before you begin.
An online equalizer changes the level of selected frequency ranges in audio. This browser-local online equalizer provides ten fixed bands from 31 Hz to 16 kHz, four presets, Custom state, Bypass comparison, a live spectrum, A–B looping, and 16-bit WAV export. It processes the complete decoded mix rather than individual voices or instruments.
Choose a supported file, play a representative section, and begin with Flat or one named preset. Move one available band in small steps, compare Bypass at the same position, and loop a difficult passage. When the tonal balance works across the file, create the local WAV with the visible gains, shared compressor, and final 0.98 peak ceiling.
The online equalizer defines 31, 62, 125, 250, and 500 Hz plus 1, 2, 4, 8, and 16 kHz. A band is enabled only when its center is below half the decoded working sample rate. For a low-sample-rate decoded buffer, upper bands can be unavailable because a digital filter cannot operate at or above Nyquist.
Flat sets all gains to zero. Bass Boost raises low bands, Vocal Clarity emphasizes selected mids, and Treble Boost raises upper bands. They are fixed starting curves, not automatic diagnoses. The online equalizer changes the label to Custom after any manual band move, letting you distinguish a named preset from your own revision.
Bypass temporarily makes the live filters and compressor transparent while preserving all slider values. It helps compare the original tonal balance with the active curve at the same playhead. The online equalizer export still uses the visible gain settings, even when Bypass is on, because Bypass is a listening comparison rather than an instruction to export unchanged audio.
It can raise low bands or emphasize midrange frequencies across the full mix. Whether that sounds like stronger bass or clearer vocals depends on the source and playback system. The online equalizer does not isolate vocals, remove instruments, repair clipping, denoise a recording, or guarantee that a preset will improve every file.
Boosted filters feed the same fixed compressor in preview and offline rendering. WAV export then scans the rendered result and scales it only when a peak exceeds 0.98, preventing direct clipping during 16-bit encoding. This provides protection, yet it is not a mastering service or loudness target. Preview loud passages and avoid unnecessary extreme boosts.
The browser’s decoded working sample rate determines the Nyquist frequency, which is half that rate. A filter center at or above Nyquist is invalid, so the online equalizer disables that control and keeps lower bands available. This behavior is expected for a low-sample-rate decoded buffer and does not mean the browser failed to decode the rest of the audio.
The current online equalizer is free, requires no sign-up, and processes one file in browser memory. Selected audio is not sent to a Pitch Changer upload endpoint. Privacy-masked analytics capture coarse events such as first play or export completed while excluding the file, filename, duration, waveform, EQ settings, spectrum, and output bytes.
You can select MP3, WAV, FLAC, M4A, AAC, or OGG up to 80 MB when your browser supports the codec. The online equalizer exports a 16-bit WAV. It does not export compressed formats or preserve the source container, bitrate, tags, cover art, loudness metadata, and codec settings in the generated file.
No. It provides a focused ten-band EQ with a safety stage. It does not target streaming loudness, maximize volume, repair distortion, compress separate bands, limit to a commercial mastering specification, or boost system and browser-tab volume. Use a dedicated production workflow when you need metering, mastering, restoration, or delivery compliance.
No. The first online equalizer handles one selected local file at a time. It has no custom preset account, cloud sync, batch queue, microphone recording, URL downloader, Google Drive import, Dropbox import, or background task. Closing or reloading the tab clears the current curve, decoded audio, spectrum, and download state.
Choose one audio file, start with Flat or a modest preset, loop the passage that reveals the balance, compare Bypass, and create a WAV after the online equalizer curve works in context.
Open the online equalizer