Audio Compressor — Reduce MP3 and WAV File Size Free Online Shrink an audio file to the size you need. Pick a target size and FileFlowHQ chooses the MP3 bitrate that fits. It runs on your device, so nothing is uploaded.
How to use Audio Compressor Drop your audio files into the box above. Pick a target size or type your own. Compress, preview and download the MP3. Frequently asked questions How small can it go? Down to about 32 kbps, which keeps speech clear. A one-hour recording fits in roughly 15 MB at that rate; shorter files go much smaller.
Will it sound worse? A smaller file holds less detail, but above 128 kbps most people can't hear a difference for music.
Are my files uploaded? No. The audio is compressed inside your browser and never leaves your device.
All FileFlowHQ tools Image Converter — HEIC, RAW, PSD, PNG, JPG, WebP, or to PDFSVG to PNG — Render SVG vectors as sharp PNG imagesImage & PDF Compressor — Shrink image or PDF file size to a targetVideo Converter — MP4, MOV, WebM, MKVAudio Converter — MP3, WAV, M4A, OGG, or a video to MP3Audio Compressor — Shrink audio to 1 MB, 5 MB or any sizeVideo Compressor — Shrink a video to 10 MB or any sizeImages to PDF — Combine images into one PDFPDF to Images — Split PDF pages into image filesMerge / Split PDF — Combine PDFs or pull out page rangesPDF to Word — Word, PowerPoint, HTML, RTF or textWord to PDF — Word, ODT, RTF, Markdown to PDFPDF Read Aloud — Text-to-speech, page by pageCSV ⇄ JSON — Convert tabular data both waysDocument Scanner — Scan pages with your camera to PDFQR & Barcode Scanner — Read QR codes and barcodes with your cameraURL Shortener — Turn a long link into a short oneHEIC to JPG — Convert HEIC files to JPGHEIC to PNG — Convert HEIC files to PNGPNG to JPG — Convert PNG files to JPGJPG to PNG — Convert JPG files to PNGWebP to JPG — Convert WebP files to JPGWebP to PNG — Convert WebP files to PNGPNG to WebP — Convert PNG files to WebPJPG to WebP — Convert JPG files to WebPAVIF to JPG — Convert AVIF files to JPGJPG to AVIF — Convert JPG files to AVIFRAW to JPG — Convert RAW files to JPGPSD to PNG — Convert PSD files to PNGPSD to JPG — Convert PSD files to JPGTIFF to JPG — Convert TIFF files to JPGJPG to TIFF — Convert JPG files to TIFFBMP to JPG — Convert BMP files to JPGGIF to PNG — Convert GIF files to PNGPNG to GIF — Convert PNG files to GIFSVG to JPG — Convert SVG files to JPGSVG to WebP — Convert SVG files to WebPJPG to PDF — Convert JPG files to PDFPNG to PDF — Convert PNG files to PDFHEIC to PDF — Convert HEIC files to PDFPDF to JPG — Convert PDF files to JPGPDF to PNG — Convert PDF files to PNGPDF to WebP — Convert PDF files to WebPPDF to PowerPoint — Convert PDF files to PowerPointPDF to HTML — Convert PDF files to HTMLPDF to RTF — Convert PDF files to RTFPDF to Text — Convert PDF files to TextDOCX to PDF — Convert DOCX files to PDFODT to PDF — Convert ODT files to PDFRTF to PDF — Convert RTF files to PDFMarkdown to PDF — Convert Markdown files to PDFHTML to PDF — Convert HTML files to PDFText to PDF — Convert Text files to PDFMOV to MP4 — Convert MOV files to MP4WebM to MP4 — Convert WebM files to MP4MKV to MP4 — Convert MKV files to MP4MP4 to WebM — Convert MP4 files to WebMMP4 to MP3 — Convert MP4 files to MP3WAV to MP3 — Convert WAV files to MP3M4A to MP3 — Convert M4A files to MP3FLAC to MP3 — Convert FLAC files to MP3MP3 to WAV — Convert MP3 files to WAVCSV to JSON — Convert CSV files to JSONJSON to CSV — Convert JSON files to CSVMerge PDF — Combine PDFs into oneSplit PDF — Extract a range of pagesCompress PDF — Shrink a PDF to 1 MB, 500 KB…Compress Image — Shrink a JPG, PNG or WebP to any KB