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Local multi-file conversion & processing

AMR to MP3 converter

Convert AMR voice recordings to MP3 locally. Common output from old phones and dictaphones.

File converter

0 files

Every file. A new possibility.

Images, audio, documents and video. Pick your files and give them a new format.

or drop your files here
Supported formats

Images

.png, .jpeg, .jpg, .webp, .gif, .svg, .jxl, .avif, .heic*, .heif*, .ico, .bmp, .cur, .ani*, .icns*, .nef*, .cr2*, .hdr, .jpe, .mat, .pbm, .pfm, .pgm, .pnm, .ppm, .tiff, .jfif, .eps*, .psd, .arw*, .tif, .dng*, .xcf*, .rw2*, .raf*, .orf*, .pef*, .mos*, .raw*, .dcr*, .crw*, .cr3*, .3fr*, .erf*, .mrw*, .mef*, .nrw*, .srw*, .sr2*, .srf*, .a*, .aai, .ai*, .art*, .avs, .b*, .bgr*, .bgra*, .bgro*, .bmp2, .bmp3, .brf*, .cal*, .cals*, .cin, .cip*, .cmyk*, .cmyka*, .dcx, .dds, .dpx, .dxt1, .dxt5, .epdf*, .epi*, .eps2*, .eps3*, .epsf*, .epsi*, .ept*, .ept2*, .ept3*, .exr, .farbfeld, .fax, .ff, .fit, .fits, .fl32, .fts, .ftxt*, .g*, .g3, .g4*, .gif87, .gray*, .graya*, .group4*, .hrz, .icb, .icon, .info*, .ipl, .isobrl*, .isobrl6*, .j2c, .j2k, .jng, .jp2, .jpc, .jpm, .jps, .map*, .miff, .mng, .mono*, .mtv, .o*, .otb, .pal*, .palm, .pam, .pcd, .pcds, .pcl*, .pct, .pcx, .pdb, .pgx, .phm, .picon, .pict, .pjpeg, .png00, .png24, .png32, .png48, .png64, .png8, .ps*, .ps1*, .ps2*, .ps3*, .psb, .ptif, .qoi, .r*, .ras, .rgb*, .rgba*, .rgbo*, .rgf, .sgi, .six, .sixel, .sparse-color*, .strimg*, .sun, .svgz*, .tga, .tiff64, .ubrl*, .ubrl6*, .uil*, .uyvy*, .vda, .vicar, .viff, .vips, .vst, .wbmp, .wpg, .xbm, .xpm, .xv, .ycbcr*, .ycbcra*, .yuv*

Audio

.mp3, .wav, .flac, .ogg, .mogg*, .oga, .opus, .aac, .alac, .m4a, .caf*, .wma, .amr, .ac3, .aiff, .aifc, .aif, .mp1*, .mp2, .mpc*, .dsd*, .dsf*, .dff*, .mqa*, .au, .m4b, .voc, .weba, .mkv*, .mp4*, .avi*, .mov*, .webm*, .ts*, .mts*, .m2ts*, .wmv*, .mpg*, .mpeg*, .flv*, .f4v*, .vob*, .m4v*, .3gp*, .3g2*, .mxf*, .ogv*, .rm*, .rmvb*, .divx*

Documents

.docx, .doc, .md, .html, .rtf, .csv, .tsv, .json, .rst, .epub, .odt, .docbook

PDF → images

.pdf*, .png*, .jpeg*, .jpg*, .webp*, .avif*, .jxl*, .gif*, .bmp*, .tiff*, .tif*, .ico*, .jp2*, .psd*, .qoi*, .tga*, .ppm*, .pgm*, .pbm*, .pnm*, .pcx*, .dds*, .exr*, .hdr*

Formats marked * support import or export only.

How to use this tool

  1. Choose files or drag them into the workspace. Matching inputs get the output format shown on this page.
  2. Check the output format and image quality for each file. Existing files in your queue keep their settings.
  3. Start the conversion, then download individual results or the completed batch. Your original files are unchanged.

Quality and format notes

AMR is a narrowband voice codec from early mobile phones — tiny files with telephone-grade sound. MP3 output plays everywhere without the original recorder software.

AMR cannot exceed its telephone-grade source; conversion is about compatibility, not fidelity. Both AMR-NB and the wider AMR-WB variants decode here.

Frequently asked questions

Why does my recording sound so dated?

AMR narrowband keeps very little audio bandwidth — it was designed to squeeze voice over 2G calls. The conversion preserves it faithfully; it cannot widen what was never captured.

What is AMR-WB?

Wideband AMR, used by newer phones for higher voice quality. Both variants convert; wideband sources sound noticeably clearer in the MP3 result.

Can I convert a whole folder of recordings?

Yes. Add them all to the queue and convert in one run, downloading individually or as a ZIP.