AudioReady — Optimize audio for programmatic ads, free

Measure and optimize for free loudness (LUFS), True Peak (dBTP), bitrate, sample rate and spot duration — IAB, Spotify, DV360 presets or custom settings, all in your browser.

100% browser processing (WebAssembly). No file upload to our servers.

Free, no sign-up: pick an SSP profile or custom mode, then optimize LUFS, True Peak, sample rate, duration and bitrate before export.

Drop an audio file or browse

or

MP3, OGG, WAV, AAC, FLAC, M4A, WMA · Max 100 MB

AudioReady: what is it for?

AudioReady is a free audio validator and optimizer for programmatic delivery and radio / digital audio spots. Upload a file, measure integrated loudness (LUFS), True Peak (dBTP), bitrate, sample rate, and channel layout, then normalize and export audio aligned with the selected SSP preset — all locally in the browser.

Optimize LUFS, True Peak, sample rate and bitrate for free

In custom mode, set at no cost and without an account the compliance and export parameters most requested in digital audio ads: target loudness (LUFS) for normalization, True Peak (dBTP) to cap peaks, target sample rate (keep original, 44.1 kHz, 48 kHz…), minimum and maximum spot duration and minimum bitrate (kbps). IAB, Magnite, Google, Spotify, Triton and Amazon tabs apply indicative values; you can always switch to custom mode to fine-tune every slider.

Main features

  • Preset tabs (indicative targets): IAB, Magnite, Google (DV360), Spotify, Triton Digital, Amazon AAX, plus custom mode (LUFS, True Peak, sample rate, duration, bitrate).
  • Waveform with trim (start/end) so you export only the useful segment.
  • Delivery check panel (metrics) and Optimized export (MP3, OGG, or WAV, bitrate, loudness normalization, 44.1 kHz sample rate option, mono/stereo, optional CBR MP3 for Triton-style requirements).
  • FFmpeg WebAssembly processing: no server upload, no storage of your audio on our side.

Frequently asked questions (FAQ)

What is AudioReady for?
To check that a spot meets common loudness and peak expectations in digital audio ads, then produce a file ready to upload to a partner (SSP, studio, self-serve).
Which audio formats can I upload?
MP3, WAV, AAC, FLAC, OGG, M4A, WMA up to 100 MB. Export can output MP3, OGG, or WAV.
What do LUFS and True Peak (dBTP) mean?
LUFS describes average perceived loudness over time (EBU R128 / ITU-R BS.1770). True Peak in dBTP tracks inter-sample peaks after filtering, complementing LUFS to reduce clipping surprises at playback.
Which platforms do the tabs cover?
Indicative profiles for IAB, Magnite, Google DV360, Spotify, Triton, Amazon AAX, plus custom mode for manual LUFS, True Peak, duration, sample rate, and export tuning.
Can I trim before export?
Yes: the blue region on the waveform marks the excerpt that will be processed and downloaded.
Is my file sent to your servers?
No. Processing runs in your browser via WebAssembly; we do not receive your file to encode it server-side.
Can I optimize LUFS, True Peak and bitrate for free?
Yes. AudioReady is free with no sign-up: measure and optimize loudness (LUFS), True Peak (dBTP), sample rate, spot duration and minimum bitrate via SSP presets or custom mode.
What is custom mode?
A panel to set target LUFS, True Peak, sample rate, min/max duration, minimum bitrate, and export options (normalization, channels, CBR MP3, etc.) — all for free.
Why is there an initial engine download?
The FFmpeg.wasm binary is about ~30 MB: it downloads once and is cached by the browser for later use on this device.

AudioReady — Optimize for free your radio or digital audio spot (MP3, WAV, AAC, FLAC, OGG): integrated loudness (LUFS), True Peak (dBTP), bitrate, sample rate 44.1 / 48 kHz, duration and IAB compliance (EBU R128 / BS.1770-4). Magnite, Spotify Ad Studio, Google DV360, Triton Digital (CBR), Amazon AAX or custom mode — download a delivery-ready file.