MP3 to FLAC Converter Online

Convert your MP3 (.mp3) file to FLAC (.flac) in seconds straight from your browser. No installs. No watermarks. 100 % free.

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Why choose HappyScribe?

47+ Formats

Convert from MP3 to FLAC but also 47+ other formats.

100% Free

No signups, no fees, no hidden restrictions. Convert MP3 to FLAC directly in your browser for free.

Secure

We take your security seriously. All file transfers use 256-bit SSL encryption.

Online

No installs needed; convert MP3 to FLAC right from your browser, on any device, anytime.

How to convert MP3 to FLAC?

1. Upload your MP3 file

Start by dragging and dropping your MP3 file into the upload area, or click to browse your device and select your file in the list.

2. Choose FLAC format

Next, pick FLAC as the format you’d like to convert your video into. Alternatively, we support +47 formats that you can choose from. When you’re ready, hit the Convert button.

3. Download your converted FLAC

Once the conversion is complete, you’ll get a download link right away. Just click to save the file to your device. It’s fast, easy, and doesn’t require any software installation.

What is a MP3 file?

MP3 is the ubiquitous lossy audio format that shrank the music industry onto the early Internet. Employing perceptual coding, it removes frequencies masked by louder sounds, producing acceptable fidelity at 128‑320 kbps. The Fraunhofer team finalised MPEG‑1 Layer III in 1994, but it wasn’t until Winamp (1997) and Napster (1999) that MP3 exploded. Patent pools expired between 2012‑2017, freeing open‑source encoders like LAME. Streaming giants now favour AAC or Opus, yet MP3 remains the safest choice for maximum backward compatibility.

What is a FLAC file?

Free Lossless Audio Codec (FLAC) compresses PCM audio by 30‑60 % without discarding information, making it ideal for archiving CDs and hi‑res mixes. It uses linear prediction and Rice coding and wraps metadata like cuesheets and artwork in a flexible block structure. Developer Josh Coalson released FLAC 1.0 under the open‑source BSD licence in 2001 as an answer to proprietary formats like Monkey’s Audio. Within a decade, hardware vendors Cowon, FiiO, Logitech Squeezebox added native decoding. In 2015, Apple began supporting FLAC in iOS 11’s Files app, cementing its place as the de‑facto lossless standard.

Free Online MP3 to FLAC Converter

Need to convert your audio file from MP3 to FLAC? It’s simple. Just upload your file, choose the output format, and click ‘Convert’. That’s it — no downloads, no complicated software, and no hidden costs. Our tool is designed to be fast, secure, and completely free, so you can turn your files into the format you need in seconds.

Whether you’re converting audio for sharing, editing, or playback on different devices, our converter ensures high-quality output every time. After your conversion, you’ll also have the option to transcribe audio to text, making it easy to turn your FLAC files into accurate, editable text in just a few clicks.

Frequently Asked Questions

How to open a MP3 file?

Every operating system, car stereo, game console, and smart speaker plays MP3. For editing, Audacity or Pro Tools convert to 32‑bit float internally. To reduce size for podcasts, re‑encode to mono 96 kbps using LAME’s `‑V` variable bit‑rate presets.

How to open a FLAC file?

VLC, foobar2000, Winamp, and the Linux desktop decode FLAC out of the box. In the studio, Reaper and Ableton Live import FLAC while preserving metadata. If you need playback on constrained devices, transcode to ALAC or high‑bit‑rate MP3 with no audible penalty in casual listening.