Free Framing & Color Tools
Free framing and color reference tools for editors and colorists — rasters, aspect ratios, gamuts and transfer curves.
Gamma / EOTF Curve Comparator
Compare sRGB, gamma 2.2, gamma 2.4, PQ and HLG display transfer curves overlaid on one chart, with a signal slider that reads out every curve — including PQ's absolute nits — from the exact standard formulas, free and in your browser.
Use ToolGamut Overlap Calculator
Compare any two color gamuts — Rec.709, DCI-P3, Rec.2020, Adobe RGB, ACES AP1, ARRI Wide Gamut 4 — as triangles on a CIE diagram, with real overlap area and directional coverage percent computed in xy and u′v′.
Use ToolLog Curve Comparison Plotter
Overlay ARRI LogC3, LogC4, Sony S-Log3, Panasonic V-Log and RED Log3G10 on one exposure chart from their published formulas, and read every curve's signal at any stop — free, no upload.
Use ToolOpen-Gate Multi-Aspect Delivery Planner
Pick a camera's open-gate mode, crop every target aspect from one sensor, and see crop resolution, % of frame retained, and upscale warnings against real delivery rasters.
Use ToolPixel Aspect Ratio Converter
Convert stored resolution and PAR into true displayed frame size, with exact-rational presets for NTSC/PAL DV, D1, HDV, DVCPRO HD and anamorphic 2x.
Use ToolSMPTE Color Bars Code Value Chart
Rendered SMPTE color bars with every R'G'B', Y'CbCr and code value computed live for your bit depth, range and matrix — click a patch for the exact numbers, free and instant.
Use ToolUHD vs DCI 4K Resolution Chart
See every standard raster from NTSC SD to 8K as true-to-scale nested rectangles, with exact dimensions, aspect ratio, megapixels and % of UHD's pixel count for each.
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