Format comparisons
Clear, side-by-side comparisons to help you pick the right image and audio format.
- WebP vs AVIF: which image format should you use? WebP and AVIF are both modern image formats built to load faster than JPEG and PNG. AVIF usually wins on file size and quality, while WebP wins on compatibility and encoding speed. Here is how they compare in practice.
- PNG vs JPG: when to use each image format PNG and JPG solve different problems. PNG is lossless and supports transparency, ideal for graphics and screenshots. JPG uses lossy compression that makes photographs much smaller. Picking the right one keeps images sharp and light.
- JPG vs WebP: should you switch your photos to WebP? JPG is the classic photo format that opens everywhere. WebP is a newer format that produces noticeably smaller files at similar quality. For websites, the switch can cut page weight significantly.
- MP3 vs WAV: compressed or lossless audio? MP3 and WAV represent two ends of the audio spectrum. WAV stores uncompressed, lossless sound; MP3 compresses it into a much smaller file. The right choice depends on whether you are editing or sharing.
- PNG vs WebP: which format is better for the web? PNG keeps every pixel losslessly and supports transparency, but files are heavy. WebP delivers similar quality at a fraction of the size and is supported by all modern browsers.
- AVIF vs JPG: modern compression or classic photos? JPG is the default photo format everywhere. AVIF uses the AV1 codec to shrink images further while keeping excellent quality, but support is newer.
- GIF vs WebP: animated images on the web GIF is the classic animated format with a 256-color limit. WebP supports animation with full color and usually produces much smaller files.
- HEIC vs JPG: iPhone photos and compatibility HEIC (HEIF) is Apple's efficient default for iPhone photos. JPG opens on virtually every device, which is why sharing often requires conversion.
- PDF vs JPG: documents or page images? PDF preserves layout, text and multiple pages in one file. JPG turns each page into a flat photo-style image that is easy to embed but not selectable text.
- BMP vs PNG: uncompressed bitmap or lossless PNG? BMP stores raw pixels with little or no compression, so files balloon. PNG compresses losslessly and supports transparency while staying sharp.
- WebP vs PNG: modern web or lossless master? Both support transparency. PNG is the lossless reference format every editor opens. WebP typically produces smaller files for the same visual result on the web.
- MP4 vs WebM: video for web and sharing MP4 (H.264) plays everywhere including phones and editors. WebM (VP9/AV1) is tuned for the web and can be smaller at similar quality in supported browsers.
- SVG vs PNG: vector source or raster export? SVG stores shapes as math—infinitely scalable for logos and icons. PNG rasterizes to fixed pixels, which every app opens but cannot scale up cleanly. Converting SVG to PNG is the bridge when a platform rejects vectors.
- JXL vs WebP: next-gen compression or safe web default? WebP is the proven modern web format with excellent browser support. JXL (JPEG XL) pushes compression further and can losslessly recompress JPEGs, but playback support is still catching up.
- FLAC vs MP3: archival quality or easy sharing? FLAC keeps every sample losslessly—perfect for archives and audiophile listening. MP3 throws away data for tiny files that play on any phone or car stereo.
- JPG vs AVIF：クラシック写真か次世代圧縮か JPGはどこでも標準。AVIFはAV1でさらに小さく、高画質を維持します。
- PNG vs AVIF：ロスレスマスターか軽量Webアセットか PNGは全ピクセルと透明度を保持します。AVIFは現代の圧縮で同等の見た目をはるかに小さなファイルにできます。
- HEIC vs PNG：iPhone保存かロスレス共有か HEICはAppleの効率的なデフォルト。PNGはロスレスでどこでも編集可能 — iPhone撮影後のマスターに最適。
- M4A vs MP3：Apple AACか汎用MP3か M4Aは通常AAC — iTunesやポッドキャストで一般的。MP3はほぼすべての端末とアップロードフォームで再生。
- OGG vs MP3：オープンVorbisか定番MP3か OGG（Vorbis）はオープン形式でゲーム等で一般的。共有の摩擦が最小なのは依然MP3。
- WAV vs FLAC：非圧縮PCMかロスレス圧縮か どちらもロスレス。WAVは生PCM、FLACはサンプルを1つも失わず圧縮。
- PDF vs PNG：複数ページ文書か鮮明なページ画像か PDFはテキストとページを一体保持。PNGは1ページをロスレスラスターで書き出し — サムネイルやスライド向け。
- GIF vs PNG：パレットアニメかフルカラー静止画か GIFはアニメ可能だが256色まで。PNGはロスレス・フルカラーで透明UIに最適。