Features

Everything justview can do.

A complete reference for the render review tools inside justview. Built from the app itself, not a wish list.

Download beta Browse features
8 feature groups
119 listed capabilities
324 documented shortcuts

Reference

Feature list

Open and playback

Load renders, image sequences, folders, and review movies without creating a project.

  • EXR image sequences
  • DPX sequences
  • PNG, JPEG, TIFF, BMP, TGA, and WebP
  • MOV and MP4 playback
  • Audio playback with mute
  • Automatic sequence detection
  • Frame stepping and timeline scrubbing
  • Forward and reverse playback
  • In and out points
  • Subrange looping
  • Mutable FPS
  • Proxy playback: full, half, quarter, 1/8, and 1/16
  • RAM-aware frame cache
  • Drag-and-drop loading
  • Welcome screen with recent files

Color and display

Use OCIO, ACES, exposure, and display controls close to the image.

  • OCIO color management
  • ACES studio config bundled
  • GPU 3D LUT display path
  • Interactive OCIO setup
  • Fuzzy colorspace search
  • Input colorspace override
  • Raw color bypass
  • Stop-based exposure
  • Fine exposure adjustment
  • Alpha display
  • Checkerboard or solid alpha backgrounds
  • Premult and unpremult toggle
  • Linear and nearest texture filtering
  • Fullscreen window
  • Zoom, pan, fit, and reset view

EXR and AOVs

Inspect EXR layers, channel groups, metadata, and contact sheets.

  • VFX-standard EXR compression support
  • Uncompressed, RLE, ZIP, ZIPS, PIZ, PXR24, B44, B44A, DWAA, and DWAB
  • Multi-part EXR
  • Single-part AOV channel groups
  • AOV layer list
  • AOV contact sheet
  • Per-layer raw color bypass
  • EXR metadata browser
  • Basic file info
  • Full metadata view

Inspection

Check pixels, channels, overlays, scopes, and metadata while staying on the keyboard.

  • Pixel inspector
  • Scene-linear pixel readout
  • Display pixel readout
  • Lockable inspector value
  • Copy scene-linear inspector value
  • Channel isolation: R, G, B, A, and luma
  • False color analysis
  • Zebra analysis mode
  • ARRI-style false color
  • Analysis grid contact sheet
  • Waveform scope
  • RGB parade
  • Vectorscope
  • Histogram
  • All-scopes view
  • Custom metadata HUD
  • Karma render stats support

Review and compare

Compare frames, versions, folders, marked files, and layouts without leaving the viewer.

  • A/B wipe compare
  • Wipe and split layouts
  • Swap A/B sides
  • Independent A/B pan and zoom
  • Linked pan and zoom
  • Sequence frame grid
  • Grid stitch mode
  • Save grid stitch as a still
  • Save grid stitch as a sequence
  • Folder browser
  • Folder thumbnails
  • Recent directories
  • Previous and next image in folder
  • Fuzzy finder
  • Numbered file marks
  • Multiple marked sets
  • Marked-file playback timeline
  • Open marked clips in review panes
  • Per-mark still durations

Grade and FX

Make temporary review grades, compare looks, and export LUTs when a note needs to travel.

  • Lift, gamma, gain, offset, saturation, and contrast
  • Keyboard grade mode
  • Mouse grade mode
  • Trackpad grade mode
  • Linear or display-referred grade
  • Grade bypass
  • Undo and redo
  • Per-file grade presets
  • Persistent grade presets
  • Sidecar .grade export
  • Grade preset comparison grid
  • .cube LUT export for the current grade
  • .cube LUT export for all presets
  • Film grain strength, size, and log mode
  • Bloom strength, threshold, radius, and toggle

Crops and export

Copy stills, save crops, export review movies, or send a LUT downstream.

  • Save/export dialog
  • Still export as EXR
  • Still export as PNG
  • Still export as JPEG
  • Still export as TIFF
  • H.264 / MP4 export through ffmpeg
  • ProRes / MOV export through ffmpeg
  • Crop guide mode
  • Crop still export
  • Crop sequence export
  • Multiple crop presets
  • Copy frame to clipboard
  • Copy stitch grid to clipboard
  • Marked timeline export
  • Quick-save current frame to ./stitched/
  • Export keyboard shortcuts as Markdown

Workflow and build

A small, keyboard-first viewer built as a single native app.

  • Shortcut-first operation
  • Live shortcut help
  • Release-synced shortcut reference
  • Custom keybindings
  • Vim navigation mode
  • Scalable bitmap-font overlay
  • Per-layer overlay toggles
  • Single binary positioning
  • Static OCIO and OpenEXR linking
  • No Qt
  • No Python runtime
  • No project setup

Keyboard

All shortcuts

324 shortcuts

Showing bundled shortcut reference.

Normal Playback Esc

Quit

Normal Playback Sh+Space

Exit Quick Look

Normal Playback Space

Play/Pause

Normal Playback J

Play backwards

Normal Playback Left

Step frame

Normal Playback L

Loop toggle

Normal Playback F

Set FPS

Normal Playback M

Mute/unmute audio

Normal Display F11

Fullscreen window (F11 / Ctrl+F)

Normal Display Q

Exposure -1 (Shift=fine)

Normal Display E

Exposure +1 (Shift=fine)

Normal Display W

Reset exposure

Normal Display T

Filter (linear/nearest)

Normal Display V

Proxy (full/half/quarter)

Normal Display V

Proxy extended (1/8, 1/16)

Normal Display B

Cycle background

Normal Display A

Alpha (checker/solid)

Normal Display R

Premult/Unpremult

Normal Display D

Raw color (no OCIO)

Normal Display Y

Cycle channel solo

Normal Display Sh+1

Inspect channel 1

Normal Display P

Analysis overlay cycle

Normal Display Sh+>

Analysis param up (radius/gain)

Normal Display Sh+<

Analysis param down

Normal Display /

Analysis grid

Normal Display X

Crop guide mode

Normal Display P

Pixel inspector

Normal Display ;

Cycle scopes (wave/parade/vec/hist)

Normal Display Sh+:

All scopes at once

Normal Color Grade Alt+C

Load preset (1-9)

Normal Color Grade C

Enter grade mode

Normal Color Grade C

Preset grid

Normal Color Grade `

Grade bypass

Normal Color Grade [

Cycle presets

Normal Color Grade Alt+Scroll

Scroll presets

Normal Other T

Sequence frame grid

Normal Other G

Frame info overlay

Normal Other G

Metadata HUD

Normal Other H

This help

Normal Other U

Basic file info

Normal Other Sh+U

Full metadata

Normal Other B

Folder browser

Normal Other Sh+R

Recent directories

Normal Other Ctrl+P

Fuzzy finder

Normal Other O

OCIO setup

Normal Other D

Cycle input colorspace

Normal Navigation F

Reset zoom/pan (fit)

Normal Navigation Ctrl+0

Reset zoom/pan

Normal Navigation Ctrl+1

Mark file slot 1

Normal Navigation Ctrl+2

Mark file slot 2

Normal Navigation Ctrl+3

Mark file slot 3

Normal Navigation Ctrl+4

Mark file slot 4

Normal Navigation Ctrl+5

Mark file slot 5

Normal Navigation Ctrl+6

Mark file slot 6

Normal Navigation Ctrl+7

Mark file slot 7

Normal Navigation Ctrl+8

Mark file slot 8

Normal Navigation Ctrl+9

Mark file slot 9

Normal Navigation 1

Jump to marked file 1

Normal Navigation 2

Jump to marked file 2

Normal Navigation 3

Jump to marked file 3

Normal Navigation 4

Jump to marked file 4

Normal Navigation 5

Jump to marked file 5

Normal Navigation 6

Jump to marked file 6

Normal Navigation 7

Jump to marked file 7

Normal Navigation 8

Jump to marked file 8

Normal Navigation 9

Jump to marked file 9

Normal Navigation Ctrl+Space

Play marked files

Normal Navigation Ctrl+Sh+Space

Open marked clips in panes

Normal Navigation N

Vim nav mode

Normal Navigation X

Font size +/-

Normal Navigation Ctrl+Right

Next image in folder

Normal Navigation Ctrl+Left

Previous image in folder

Normal Navigation Scroll

Zoom in/out

Normal Navigation MMB

Pan

Normal Navigation MMB+LMB

Zoom drag

Normal Navigation RMB

Scrub timeline

Normal Navigation =

Zoom in

Normal Navigation -

Zoom out

Normal AOV Layers Tab

Layer list

Normal AOV Layers Sh+Tab

Grid view

Normal In/Out I

Set in-point

Normal In/Out I

Clear in/out

Normal In/Out O

Set out-point

Normal Export Ctrl+S

Save/export dialog

Normal Export Sh+S

Save current frame — choose format & path

Normal Export Ctrl+C

Copy frame

Normal Export Ctrl+Sh+C

Copy scene-linear (inspector)

Normal Export Ctrl+L

Export grade as .cube LUT

Normal Export Ctrl+Sh+K

Export keyboard shortcuts

Normal Edit Ctrl+Z

Undo

Normal Edit Ctrl+Sh+Z

Redo

Normal Compare \

A/B wipe compare

Normal Compare |

Grid stitch mode

Normal Pane Nav W

Pane nav mode

Normal Pane Nav Ctrl+N

Welcome screen (reset pane)

A/B Wipe Compare Compare Esc

Exit A/B wipe

A/B Wipe Compare Compare \

Exit A/B wipe

A/B Wipe Compare Compare S

Swap A/B sides

A/B Wipe Compare Compare S

Toggle A/B stretch / fit

A/B Wipe Compare Compare Tab

Toggle wipe/split layout

A/B Wipe Compare Compare 1

Switch to pane A

A/B Wipe Compare Compare 2

Switch to pane B

A/B Wipe Compare Compare L

Link/unlink pan/zoom

Color Grading (common) Display ;

Cycle scopes (wave/parade/vec/hist)

Color Grading (common) Display Sh+:

All scopes at once

Color Grading (common) Display P

Analysis overlay cycle

Color Grading (common) Display P

Pixel inspector

Color Grading (common) Display Q

Exposure -1 (Shift=fine)

Color Grading (common) Display E

Exposure +1 (Shift=fine)

Color Grading (common) Display Ctrl+Y

Cycle channel solo

Color Grading (common) Edit Ctrl+Z

Undo

Color Grading (common) Edit Ctrl+Sh+Z

Redo

Color Grading (common) Grade Esc

Exit grade mode

Color Grading (common) Grade Tab

Cycle input mode

Color Grading (common) Grade `

Toggle bypass

Color Grading (common) Grade M

Linear/display

Color Grading (common) Grade M

Grain log mode

Color Grading (common) Grade Space

Play/Pause

Color Grading (common) Grade Ctrl+U

Bloom toggle

Color Grading (common) Grade R

Reset grade

Color Grading (common) Grade R

Delete all presets

Color Grading (common) Grade S

Save preset (1-9)

Color Grading (common) Grade A

Alpha (checker/solid)

Color Grading (common) Grade Alt+C

Load preset (1-9)

Color Grading (common) Grade [

Prev preset

Color Grading (common) Grade ]

Next preset

Color Grading (common) Grade C

Preset grid

Color Grading (common) Grade Ctrl+E

Export sidecar

Color Grading (common) Grade Sh+Scroll

Cycle params

Color Grading (common) Grade Grain/Bloom N

Grain +

Color Grading (common) Grade Grain/Bloom N

Grain -

Color Grading (common) Grade Grain/Bloom G

Grain size +

Color Grading (common) Grade Grain/Bloom G

Grain size -

Color Grading (common) Grade Grain/Bloom B

Bloom +

Color Grading (common) Grade Grain/Bloom B

Bloom -

Color Grading (common) Grade Grain/Bloom T

Threshold +

Color Grading (common) Grade Grain/Bloom T

Threshold -

Color Grading (common) Grade Grain/Bloom F

Radius +

Color Grading (common) Grade Grain/Bloom F

Radius -

Color Grading (common) In/Out I

Set in-point

Color Grading (common) In/Out O

Set out-point

Color Grading (common) In/Out I

Clear in/out

Color Grading — Keyboard Grade Keyboard 1

Select Lift

Color Grading — Keyboard Grade Keyboard 2

Select Gamma

Color Grading — Keyboard Grade Keyboard 3

Select Gain

Color Grading — Keyboard Grade Keyboard 4

Select Offset

Color Grading — Keyboard Grade Keyboard 5

Select Saturation

Color Grading — Keyboard Grade Keyboard 6

Select Contrast

Color Grading — Keyboard Grade Keyboard 7

Select Grain

Color Grading — Keyboard Grade Keyboard 8

Select Bloom

Color Grading — Keyboard Grade Keyboard 9

Select Hue

Color Grading — Keyboard Grade Keyboard J

Master -

Color Grading — Keyboard Grade Keyboard K

Master +

Color Grading — Keyboard Grade Keyboard H

Color cool

Color Grading — Keyboard Grade Keyboard L

Color warm

Color Grading — Keyboard Grade Keyboard J

Color magenta

Color Grading — Keyboard Grade Keyboard K

Color green

Color Grading — Keyboard Grade Keyboard X

Reset param

Color Grading — Keyboard Grade Keyboard Ctrl+W

Reset exposure

Color Grading — Keyboard Grade Keyboard Ctrl+V

Proxy cycle

Color Grading — Keyboard Grade Keyboard =

Zoom in

Color Grading — Keyboard Grade Keyboard -

Zoom out

Color Grading — Mouse Grade Mouse 1

Select Lift

Color Grading — Mouse Grade Mouse X

Reset param

Color Grading — Mouse Grade Mouse Ctrl+W

Reset exposure

Color Grading — Mouse Grade Mouse Ctrl+V

Proxy cycle

Color Grading — Mouse Grade Mouse =

Zoom in

Color Grading — Mouse Grade Mouse -

Zoom out

Color Grading — Mouse Grade Mouse LMB

Color balance

Color Grading — Mouse Grade Mouse RMB

Master adjust

Color Grading — Mouse Grade Mouse DblLMB

Reset color

Color Grading — Mouse Grade Mouse DblRMB

Reset master

Color Grading — Mouse Grade Mouse Sh+RMB

Scrub timeline

Color Grading — Trackpad Grade Trackpad 1

Select Lift

Color Grading — Trackpad Grade Trackpad V

Toggle color/master

Color Grading — Trackpad Grade Trackpad Sh+V

Proxy cycle

Color Grading — Trackpad Grade Trackpad Ctrl+W

Reset exposure

Color Grading — Trackpad Grade Trackpad =

Zoom in

Color Grading — Trackpad Grade Trackpad -

Zoom out

Color Grading — Trackpad Grade Trackpad X

Reset param

Color Grading — Trackpad Grade Trackpad Scroll

Adjust grade

Vim Navigation Vim Nav Esc

Exit

Vim Navigation Vim Nav H

Pan (Shift=fast)

Vim Navigation Vim Nav =

Zoom in

Vim Navigation Vim Nav -

Zoom out

Vim Navigation Vim Nav 0

Reset

OCIO Setup OCIO Setup Esc

Exit

OCIO Setup OCIO Setup Tab

Cycle panels

OCIO Setup OCIO Setup O

Open config

OCIO Setup OCIO Setup R

Reset to OCIO env

OCIO Setup OCIO Setup Enter

Select

OCIO Setup OCIO Setup Up

Move up

OCIO Setup OCIO Setup Down

Move down

OCIO Setup OCIO Setup PgUp

Page up

OCIO Setup OCIO Setup PgDn

Page down

OCIO Setup OCIO Setup Bksp

Clear filter

OCIO Setup OCIO Setup /

Fuzzy find

OCIO Setup OCIO Setup Space

Mark for Shift+D cycle

AOV Layer List Layer List Esc

Exit

AOV Layer List Layer List Sh+Tab

Grid view

AOV Layer List Layer List Up

Navigate

AOV Layer List Layer List Enter

Confirm

AOV Layer List Layer List Ctrl+D

Raw color

AOV Layer List Layer List 0

Default layer

AOV Layer List Layer List Space

Play/Pause

AOV Grid AOV Grid Esc

Exit

AOV Grid AOV Grid Enter

Select layer

AOV Grid AOV Grid Left

Navigate

AOV Grid AOV Grid Ctrl+G

Toggle labels

AOV Grid AOV Grid Ctrl+V

Cycle proxy

AOV Grid AOV Grid Ctrl+V

Extended proxy (1/8, 1/16)

AOV Grid AOV Grid Ctrl+R

Hi-res toggle

AOV Grid AOV Grid Ctrl+C

Copy to clipboard

AOV Grid AOV Grid D

Toggle item visibility

AOV Grid AOV Grid D

Show all items

AOV Grid AOV Grid Q

Exposure -1 (Shift=fine)

AOV Grid AOV Grid W

Reset exposure

AOV Grid AOV Grid E

Exposure +1 (Shift=fine)

AOV Grid AOV Grid Z

Font size -

AOV Grid AOV Grid X

Font size +

AOV Grid AOV Grid `

Toggle grade bypass

Analysis Grid Analysis Grid Esc

Exit

Analysis Grid Analysis Grid Enter

Select mode

Analysis Grid Analysis Grid Left

Navigate

Analysis Grid Analysis Grid Ctrl+G

Toggle labels

Analysis Grid Analysis Grid T

Toggle item visibility

Analysis Grid Analysis Grid T

Show all items

Analysis Grid Analysis Grid D

Toggle OCIO bypass

Analysis Grid Analysis Grid S

Toggle selective adjust

Analysis Grid Analysis Grid Sh+>

Param up

Analysis Grid Analysis Grid Sh+<

Param down

Analysis Grid Analysis Grid Q

Exposure -1 (Shift=fine)

Analysis Grid Analysis Grid W

Reset exposure

Analysis Grid Analysis Grid E

Exposure +1 (Shift=fine)

Analysis Grid Analysis Grid Z

Font size -

Analysis Grid Analysis Grid X

Font size +

Analysis Grid Analysis Grid `

Toggle grade bypass

Grade Preset Grid Export Ctrl+L

Export all preset LUTs

Grade Preset Grid Export Ctrl+S

Export visible grade presets

Grade Preset Grid Grade Grid Esc

Exit

Grade Preset Grid Grade Grid Enter

Select preset

Grade Preset Grid Grade Grid Left

Navigate

Grade Preset Grid Grade Grid Ctrl+G

Toggle labels

Grade Preset Grid Grade Grid Ctrl+V

Cycle proxy

Grade Preset Grid Grade Grid Ctrl+V

Extended proxy (1/8, 1/16)

Grade Preset Grid Grade Grid C

Select preset

Grade Preset Grid Grade Grid Ctrl+C

Copy to clipboard

Grade Preset Grid Grade Grid Delete

Delete preset

Grade Preset Grid Grade Grid Space

Play/Pause

Grade Preset Grid Grade Grid Q

Exposure -1 (Shift=fine)

Grade Preset Grid Grade Grid W

Reset exposure

Grade Preset Grid Grade Grid E

Exposure +1 (Shift=fine)

Grade Preset Grid Grade Grid Z

Font size -

Grade Preset Grid Grade Grid X

Font size +

Stitch Grid Stitch Esc

Exit stitch mode

Stitch Grid Stitch |

Exit stitch mode

Stitch Grid Stitch Left

Move cursor left

Stitch Grid Stitch H

Move cursor left

Stitch Grid Stitch Right

Move cursor right

Stitch Grid Stitch L

Move cursor right

Stitch Grid Stitch Up

Move cursor up

Stitch Grid Stitch K

Move cursor up

Stitch Grid Stitch Down

Move cursor down

Stitch Grid Stitch J

Move cursor down

Stitch Grid Stitch =

Grow grid (+1 col & row)

Stitch Grid Stitch +

Grow grid

Stitch Grid Stitch -

Shrink grid (-1 col & row)

Stitch Grid Stitch S

Swap cursor cell with next

Stitch Grid Stitch X

Remove file from cursor cell

Stitch Grid Stitch Ctrl+G

Toggle cell labels

Stitch Grid Stitch Scroll

Zoom

Stitch Grid Stitch D

Cycle input colorspace

Stitch Grid Stitch O

OCIO setup

Stitch Grid Stitch Ctrl+S

Save stitched image/sequence

Stitch Grid Stitch Sh+S

Save current frame — choose format & path

Stitch Grid Stitch Ctrl+C

Copy stitch to clipboard

Stitch Grid Stitch C

Enter color grade mode

Stitch Grid Stitch Space

Play/Pause sequences

Stitch Grid Stitch ,

Step frame back

Stitch Grid Stitch .

Step frame forward

Stitch Grid Stitch Tab

Next AOV layer

Stitch Grid Stitch Sh+Tab

Previous AOV layer

Stitch Grid Stitch Q

Exposure -1 (Shift=fine)

Stitch Grid Stitch W

Reset exposure

Stitch Grid Stitch E

Exposure +1 (Shift=fine)

Stitch Grid Stitch Z

Font size -

Stitch Grid Display ;

Cycle scopes (wave/parade/vec/hist)

Stitch Grid Display Sh+:

All scopes at once

Recents Recents Esc

Close

Recents Recents J

Move down

Recents Recents K

Move up

Recents Recents Enter

Open file

Fuzzy Finder Fuzzy Finder Esc

Close

Fuzzy Finder Fuzzy Finder Enter

Open file

Fuzzy Finder Fuzzy Finder Down

Move down

Fuzzy Finder Fuzzy Finder Up

Move up

Marked Files Marked Files Esc

Close

Marked Files Marked Files Enter

Open marked file

Marked Files Marked Files Space

Play marked files

Marked Files Marked Files Tab

Next marked set

Marked Files Marked Files Sh+Tab

Previous marked set

Marked Files Marked Files Sh+N

New marked set

Marked Files Marked Files Sh+D

Duplicate marked set

Marked Files Marked Files Sh+R

Rename marked set

Marked Files Marked Files Sh+X

Delete marked set

Marked Files Marked Files S

Swap mark

Marked Files Marked Files X

Delete mark

Marked Files Marked Files [

Still duration -

Marked Files Marked Files ]

Still duration +

Marked Files Marked Files Left

Move selection

Marked Files Marked Files 1

Open marked slot 1

Marked Files Marked Files 2

Open marked slot 2

Marked Files Marked Files 3

Open marked slot 3

Marked Files Marked Files 4

Open marked slot 4

Marked Files Marked Files 5

Open marked slot 5

Marked Files Marked Files 6

Open marked slot 6

Marked Files Marked Files 7

Open marked slot 7

Marked Files Marked Files 8

Open marked slot 8

Marked Files Marked Files 9

Open marked slot 9

Metadata Browser Metadata Esc

Close

Metadata Browser Metadata Sh+U

Full metadata

Metadata Browser Metadata J

Scroll down

Metadata Browser Metadata K

Scroll up

Metadata Browser Metadata Scroll

Scroll

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