{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-06-02T15:45:19.708Z","discovery":{"catalog":"https://toptool.io/tools.json","llmsTxt":"https://toptool.io/llms.txt","sitemap":"https://toptool.io/sitemap.xml"},"relatedTools":[{"slug":"mp3-to-flac","name":"MP3 to FLAC","url":"https://toptool.io/mp3-to-flac"},{"slug":"audio-trimmer","name":"Audio Trimmer","url":"https://toptool.io/audio-trimmer"},{"slug":"flac-to-wav","name":"FLAC to WAV","url":"https://toptool.io/flac-to-wav"},{"slug":"flac-to-ogg","name":"FLAC to OGG","url":"https://toptool.io/flac-to-ogg"},{"slug":"wav-to-mp3","name":"WAV to MP3","url":"https://toptool.io/wav-to-mp3"},{"slug":"ogg-to-mp3","name":"OGG to MP3","url":"https://toptool.io/ogg-to-mp3"},{"slug":"aac-to-mp3","name":"AAC to MP3","url":"https://toptool.io/aac-to-mp3"},{"slug":"m4a-to-mp3","name":"M4A to MP3","url":"https://toptool.io/m4a-to-mp3"}],"kind":"converter","slug":"flac-to-mp3","name":"FLAC to MP3","description":"Convert FLAC lossless audio to MP3 — free online, no upload.","longDescription":"Encode a FLAC file as a variable-bitrate MP3 using LAME. This is the typical workflow for shrinking a lossless library down to phone-friendly files while keeping near-transparent quality at higher VBR settings. The conversion runs entirely in your browser via ffmpeg.wasm — your audio never touches a server. Expect a few seconds for a 5-minute song; longer or larger files may take a minute or two.","category":"audio","categoryName":"Audio","keywords":["flac to mp3","convert flac to mp3","flac to mp3 converter","flac to mp3 online","flac to mp3 free","flac to mp3 online free","change flac to mp3","flac mp3 converter","free flac to mp3","online flac to mp3 converter","lossless to mp3"],"url":"https://toptool.io/flac-to-mp3","runsOn":"client","multiple":false,"batch":false,"input":{"type":"file","extensions":[".flac"],"mimeTypes":["audio/flac","audio/x-flac"]},"output":{"type":"file","extension":".mp3","mimeType":"audio/mpeg"},"options":[{"type":"select","key":"quality","label":"MP3 quality","defaultValue":"2","choices":[{"value":"0","label":"VBR best (~245 kbps)"},{"value":"2","label":"VBR high (~190 kbps)"},{"value":"4","label":"VBR medium (~165 kbps)"},{"value":"6","label":"VBR low (~115 kbps)"},{"value":"9","label":"VBR lowest (~65 kbps)"}],"help":"Lower numbers = better quality and larger files."}],"invocation":{"webUi":"https://toptool.io/flac-to-mp3","api":null,"notes":"Currently runs client-side in the user's browser. Drop a file on the UI at `webUi` and download the converted result. A remote MCP/REST API is planned."}}