EXR vs PNG — Differences, File Size & When to Use Each

EXR vs PNG

Ein detaillierter Vergleich von OpenEXR Image und PNG Image — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.

EXR → PNG umwandeln PNG → EXR umwandeln

EXR

OpenEXR Image

Raster & Vector Images

OpenEXR is a high dynamic range imaging format used in visual effects and film production.

Über EXR-Dateien

PNG

PNG Image

Raster & Vector Images

PNG is a lossless image format that supports transparency. It is ideal for graphics, logos, screenshots, and any image where preserving exact pixel data is important.

Über PNG-Dateien

Vorteilsvergleich

EXR Vorteile

Genuine high-dynamic-range storage (32-bit float per channel).
Multi-channel layers native — store an entire render pass in one file.
Industry standard across every major VFX and animation studio.
Deep samples enable modern compositing workflows.
Open-source reference implementation with mature tooling.

PNG Vorteile

Lossless compression — every save preserves the original pixels perfectly.
Full 8-bit alpha channel for smooth transparency.
Excellent for text, UI screenshots, logos, and line art.
Royalty-free and an ISO standard (ISO/IEC 15948).
Supports 16-bit color depth for high-fidelity work.

Einschränkungen

EXR Einschränkungen

Enormous file sizes.
Not a web format — browsers don't display EXR.
Decoding is CPU-intensive.
Consumer apps rarely need HDR at this precision.

PNG Einschränkungen

Much larger than JPEG for photographs (no perceptual compression).
No native animation in most software (APNG support is inconsistent).
No CMYK support — web and screen only, not print.
Metadata capabilities are less rich than JPEG's EXIF.

Technische Spezifikationen

Spezifikation	EXR	PNG
MIME type	image/x-exr	image/png
Extension	.exr	—
Bit depths	16-bit half-float, 32-bit float, 32-bit uint	—
Compression	ZIP, PIZ, PXR24, B44, DWAA, DWAB, RLE, None	Lossless — DEFLATE (zlib)
Max channels	Practically unlimited (arbitrary named layers)	—
Color depth	—	1, 2, 4, 8 or 16 bits per channel
Max dimensions	—	2^31 − 1 pixels per side (2.1 billion)
Transparency	—	Full 8-bit alpha channel
Standard	—	ISO/IEC 15948:2004

Typische Dateigrößen

EXR

1080p half-float with alpha 15-25 MB
4K multichannel VFX render 200-500 MB
8K deep EXR (heavy comp) 1-4 GB per frame

PNG

Icon or small logo 2–20 KB
UI screenshot (1920×1080) 200–800 KB
High-res photo (12 MP) 10–30 MB
Print-ready illustration 5–50 MB

Bereit zum Umwandeln?

Wandle zwischen EXR und PNG online um, kostenlos und ohne Installation. Verschlüsselter Upload, automatische Löschung in 60 Minuten.

EXR zu PNG umwandeln PNG zu EXR umwandeln

Häufig gestellte Fragen

EXR (OpenEXR Image) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose EXR when its particular strengths match the publishing target.

EXR (OpenEXR Image) is an image formato used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family e designed around a specific trade-off between tamanho do arquivo, visual fidelity, e feature support (transparency, colour depth, compressão type). Photographers, web designers, e content creators choose EXR when its particular strengths match the publishing target.

Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open EXR natively. On mobile, iOS Photos and Google Photos display EXR in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our EXR to JPG or EXR to PNG converter.

Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) abrir EXR natively. On mobile, iOS Photos e Google Photos display EXR no gallery when suportado por the OS. If the formato is rare ou new, converter to JPG ou PNG first — both are universally readable — usando our EXR to JPG ou EXR to PNG converter.

Upload the EXR to KaijuConverter and pick a target format (JPG, PNG, WebP, HEIC, TIFF, BMP, SVG, PDF). The conversion runs in the browser via ImageMagick and returns a download in seconds. No account or installation required; both input and output delete automatically within two hours.

It depends on the task. JPG is the smallest file size for photographs; PNG is lossless with transparency; EXR has its own niche that may favour colour depth, animation, or encoding efficiency over one or both of those. For the final web publish, test all three and measure file size plus visible quality on real content.