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Audio converter

Drop your videos here

Video or audio in. Just the sound out.

MP4 · MOV · MKV · WEBM · MP3 · WAV + MORE

Processed on this device20 files per workspace

Conversion queue

0

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Add files to inspect, convert, and save them.

Output settings

Convert to

Quality preset

High qualityVBR · recommendedDEFAULT Balanced192 kbps Smaller file128 kbps Voice96 kbps · mono · 32 kHz

Higher bitrates cannot restore detail missing from the source.

Advanced audio settings

Override preset Bitrate

ChannelsSample rate

PDF pagesApplies to PDF text extraction only. PDF paperBrowser/reflow export only. Desktop Word rendering retains document page settings. Include link addresses in plain text

Worksheets

CSV separatorUTF-8 BOM for ExcelProtect formula-like text cells

Adds an apostrophe to text starting with =, +, − or @. Numeric values are unchanged. Disable only for trusted data.

PaperOrientation

Quality preset

Maximum heightFrame rate

Remove audio

Trim video

Start (seconds)End (seconds)

Re-encodes the first video and audio tracks. Subtitles and extra tracks are not included. Aspect ratio is preserved; videos are not upscaled.

Quality 90

Icon sizes

1624324864128256

One real .ico file with multiple sizes. Artwork is centred, never stretched. Small sources may be upscaled for selected sizes.

Resize & image options

Max widthMax height

Aspect ratio is preserved. Leave both blank to keep the original size.

Allow upscaling when resizing Transparency background Lossless WebP Preserve animation (native engine)

Still image / first frame. Metadata is removed from the output.

Batch naming

Name pattern

Use {name} for the original name and {n} for its queue number. You can also rename each result.

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Keep this window open during conversion.

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Settings & help

AppearanceProcessing engine

Desktop & offline

Install from your browser menu where supported. The local launcher must stay open for native FFmpeg and native image processing.

Offline preparation caches the interface and browser image tools. Audio/video require the bundled FFmpeg runtime; advanced Office formats require the bundled document/spreadsheet tools.

Optional local history

Remember conversion names and settingsKeep completed outputs on this device

Off by default. Original files are not retained in history. Browser storage can be cleared or evicted; download important results.

Supported formats

Audio: MP3, WAV, FLAC, M4A/AAC, OGG and Opus output with native FFmpeg. Actual input codec support depends on the installed build.

Images: PNG, JPEG, WebP, BMP, GIF, TIFF, ICO and AVIF with the native engine. HEIC/HEIF input requires the optional decoder. SVG input is rasterized in the browser; raster-to-SVG tracing is not included.

Documents: PDF → editable DOCX text, DOCX → PDF, HTML → TXT, plus text/HTML exports. Browser PDF output is reflowed. Desktop DOCX/ODT/RTF rendering requires LibreOffice. Scanned PDFs require OCR, which is not included.

Spreadsheets: XLSX/CSV/ODS/TSV/JSON, and Numbers through the browser bundle or optional desktop decoder. PDF is a table report, not the original canvas. CSV exports use saved values; formulas are not recalculated.

Video: MP4, MOV, MKV, WebM and AVI output. Media decoding depends on the active FFmpeg build. Large files work best with the desktop engine.

Browser images: PNG, JPEG, WebP, BMP, GIF, TIFF and ICO output. AVIF input depends on browser decoding. First frame only; TIFF input in browser mode is limited to uncompressed RGB/RGBA TIFF.

Images: 40 megapixels native / 16 megapixels browser. Native input: 2 GB per file; browser image input: 50 MB. Animation preservation: native PNG, GIF or WebP only, up to 120 frames and an 80-megapixel decoded-frame budget.

Privacy & shortcuts

There is no account, analytics, cloud upload, or remote conversion service. Native mode transfers selected files only to the launcher at 127.0.0.1 and uses temporary local storage. Close the launcher to clear its temporary session. Browser mode processes files in this browser.

Ctrl / ⌘ O add files · Ctrl / ⌘ Enter convert · Esc close a dialog. Use the Stop button to cancel a conversion.

xConvert 3.0.0-rc.1 · Foldback identity

Conversion history

Only explicitly saved conversions appear here. Sources are not stored.

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