---
title: "WAV to FLAC — Lossless Audio Compression | Compress Pro"
description: "Convert WAV to FLAC in your browser — mathematically lossless, typically half the size. No upload, no sign-up, no length limits. Free and private."
canonical: https://compress-pro.com/wav-to-flac
---

# Convert WAV to FLAC.

> Same audio, about half the bytes — WAV to FLAC, locally.

FLAC stores exactly the same samples as WAV in roughly half the bytes — compression with no quality question at all. Drop WAV masters, download FLACs that decode back bit-for-bit; **everything runs in your browser and nothing is uploaded**.

**No uploads · No ads · Free & open source.**

## How it works

1. Drop files anywhere on the page, click to browse, or paste with Ctrl/⌘ + V.
2. Pick a quality or preset — or set an exact target size and let the tool find it.
3. Compress, compare before/after, and download — individually or as a ZIP.

## When FLAC beats WAV

Every archival or editing reason to keep WAV applies to FLAC at half the disk — DAWs and editors widely accept it, and it even carries tags WAV cannot. Use it for masters and libraries; for sharing and phones, [FLAC to MP3](https://compress-pro.com/flac-to-mp3) makes the small copy, and plain [WAV to MP3](https://compress-pro.com/wav-to-mp3) skips the archival step entirely.

## Frequently asked questions

### Is FLAC really lossless?

Yes — decode a FLAC and you get the identical samples the WAV held, bit for bit. It is a zip-style pack for audio, not a lossy encoder; that is why there is no bitrate to choose.

### How much space does it save?

Typically 40–60% for music and up to 70% for speech or quiet recordings. Dense, loud material compresses least — the savings depend on the audio itself, not on a setting.

### Why is there no bitrate slider?

Lossless formats have nothing to trade away — FLAC packs the samples as small as they go and always decodes to the exact original. For a smaller file you would switch to a lossy format like MP3 or Opus instead.

### Is it private?

Yes. The audio is decoded and re-encoded entirely in your browser — recordings never leave your device, and the server does nothing but deliver this page. Voice memos, interviews, demos: none of it is uploaded anywhere. Want proof? Run one file through, switch your connection off, and run another — it still works.

## Related tools

- [Convert FLAC to MP3](https://compress-pro.com/flac-to-mp3)
- [Convert WAV to MP3](https://compress-pro.com/wav-to-mp3)
- [Compress & Convert audio](https://compress-pro.com/compress-audio)

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Part of [Compress Pro](https://compress-pro.com/) — every tool page has a markdown twin at `<page url>.md`. Full tool index: [llms.txt](https://compress-pro.com/llms.txt)