Kanvaz Guide

Free, open-source, 100% offline reference board for VFX and 3D artists.

View the Project on GitHub p4inz-code/kanvaz

Media Previews

Verified against Kanvaz v9.7.0.

What Kanvaz can open and render a real, honest preview for — not just a generic file icon — and register itself with your OS to open directly (“Open with Kanvaz”).

Natively previewed formats

Category Formats
Image JPG, JPEG, PNG, BMP, WEBP
Animated GIF GIF
Video MP4, WEBM, MOV, MKV, AVI — inline scrubbable player
Audio MP3, WAV, OGG, M4A — with a waveform preview
3D Model GLB, GLTF, OBJ, FBX, STL, PLY, VOX, USD/USDA/USDC/USDZ
Blender File .blend — Kanvaz uses a local Blender install to export a real thumbnail, if one is detected (see blender-detect.js)
PDF Document PDF — page-by-page preview
Adobe File PSD, PSB, AI, XD, INDD, INDT
HDR/EXR Image Radiance .hdr/.pic, OpenEXR .exr — tone-mapped preview (not color-managed); some EXR compression methods aren’t decoded yet
Krita File .kra — reads the whole-canvas PNG Krita itself saves inside the file, not a per-layer thumbnail

3D model modes

3D cards can render in several shading modes (Shaded, Normals, Matcap, Wireframe, Albedo, Alpha), each preserving the model’s real color, opacity, and sidedness — switching modes never touches the original material.

Preview quality

Rendering for 3D/PDF/Adobe previews has a Low/Medium/High setting (see Settings) — pixel ratio, DPI, and max texture size all climb together from Low to High. A card can also override the global setting individually.

What’s deliberately not previewed

Formats without a real, trustworthy path to a preview stay as a generic labeled file-reference card instead of guessing: ZBrush .ztl, Houdini .hip/.hipnc, Cinema 4D .c4d, Maya .ma/.mb, Clip Studio .clip, Procreate .procreate. None of these have a headless/command-line export path the way .blend does through a local Blender install, so Kanvaz doesn’t claim to open them at the OS level — a labeled file card is still fully usable (name, tags, connections, notes all work), it just won’t show a thumbnail.