Getting started
Drop a model folder in
Drag the folder holding the .pmx and its tex/ directory onto the viewport. That loads the model and nothing else.
Negi.Free MikuMikuDance (MMD) keyframe animation software.
A MikuMikuDance viewer and keyframe animator for Mac and Windows, and in a browser. Drop in a model, bind a motion, pose it, key it, and export a VMD. Nothing is uploaded: the files are read straight off your disk.
PMX / PMDVMD / VPDBullet physics30fps timelineFree
Download for Mac1.0.0 · Apple Silicon · 119 MBDownload for Windows1.0.0 · 64-bit installer · 101 MBTry it in your browserNo install · your files stay local
On a Mac? Apple Silicon (119 MB) or Intel (124 MB).
Got an Intel Mac? Download the Intel build (124 MB).
On Windows? Download the installer (101 MB).
This is Negi Standard, which animates one character per scene. The browser version is the same build, in Chrome or Edge for folder access.
How it works
- Step 1
Drop the model folder
The folder holding the .pmx and its tex/ directory, onto the viewport. A lone .pmx works too, and Negi asks once where its textures live, then remembers.
Step 2Drop a .vmd on top
It binds to the active model. A camera .vmd drives the camera instead, and a .vpd poses the model without animating it.
Step 3Pose, key, export
Move a bone, press K, scrub the strip. Export a VMD or a VPD, or save the whole session as a scene file that reopens as you left it.
Information
- Negi Standard now runs in a browser at try.negi.dance, with nothing to install26.8.24
- Negi 1.0.0 for Windows: a 64-bit installer, the same app as the Mac build26.8.24
- Negi 1.0.0: the desktop build, for Apple Silicon and Intel Macs26.8.22
- Keyframe box-select, copy and paste in the timeline strip26.8.22
- Exports go through the native save dialog on the desktop build26.8.20
- Graph view: six channels per bone, with draggable bezier handles26.8.19
What's inside
RenderingViewport
PMX and PMD with toon shading, sphere maps, outlines and SDEF+QDEF skinning.
Learn more
AnimationTimeline
Integer frames at 30fps. Drag it tall and it becomes a row per keyed bone.
Learn more
CurvesGraph view
Position and rotation plotted over time, with the key dots on the curve.
Learn more
InterpolationKeys and easing
MMD's own bezier control points, editable per key or across a whole track.
Learn more
LightingLights
The sun plus point, spot and directional fixtures. K keys them like a bone.
Learn more
Post effectsGraphics
Depth of field, bloom, GTAO, SMAA, a tone curve and colour grading.
Learn more
ExpressionsMorphs
Every morph the model ships as a slider, material morphs included.
Learn more
Import and exportFiles
VMD and VPD in and out, plus a scene file that reopens the whole session.
Learn moreNegi features What it does, in order
Motion
Motions are a second, explicit act
Drop a .vmd to bind it to the character in the scene, or aim it from that character's row in the outliner. A camera .vmd drives the camera.
Curve editing
Curves that match playback
The graph samples the document with the runtime's own bezier solve and slerp, so what it draws is what plays.
Lighting
Light it, then key the light
The sun drives the MMD shader itself; point and spot fixtures reach the floor, the shadow map and any stage you load.
Expressions
Morphs on sliders
Filter by name, drag a slider, and key it at the playhead. Material morphs run through the same path.
Look
A post chain, not a preset
DOF, bloom, GTAO and a colour grade over an MMD-faithful composite, with the ambient scale that most converted models need.
Export
Exports keep the bytes
An imported key carries its own interpolation bytes through untouched, so a round trip is not a re-authoring.
Privacy
Nothing is uploaded
Models, motions and scenes are read from your disk and stay there. There is no account, no server and no telemetry.
Requirements
- Version
- 1.0.0, released 2026-08-24
- Edition
- Standard. One character per scene, unlimited stages and lights
- macOS
- macOS 12 Monterey or later
- Windows
- Windows 10 (1809) or later, 64-bit
- Apple Silicon
- Negi-1.0.0-arm64.dmg · 119 MB
- Intel Mac
- Negi-1.0.0-intel.dmg · 124 MB
- Windows x64
- Negi-Setup-1.0.0.exe · 101 MB
- In a browser
- try.negi.dance. No install. Chrome or Edge for folder access; Firefox and Safari use a folder chooser
- Graphics
- WebGL 2, the same renderer on the desktop and in a browser
- Price
- Free. No account, no server, no telemetry. Premium is on Patreon.
macOS: the build is signed ad-hoc, not notarised.macOS will say it can't verify Negi is free of malware and offers only Move to Trash / Done. Click Done, then open System Settings → Privacy & Security → Open Anyway. Or clear the quarantine flag yourself:
xattr -dr com.apple.quarantine "/Applications/Negi.app"Windows: the installer is not code-signed either.SmartScreen will say Windows protected your PC. Click More info then Run anyway. It installs for the current user, so it never asks for an administrator password.
Questions
What is Negi?
Negi is a free MikuMikuDance (MMD) viewer and keyframe animator. It opens PMX and PMD models, binds VMD motions to them, and lets you pose a model, key it on a 30fps timeline and export the result as a VMD or a VPD. It runs on macOS, on Windows and in a browser.
Is Negi free?
Yes. Negi Standard is free, with no account, no subscription and no trial period. The paid tier, Negi Premium, is the same app without the one-character-per-scene limit and goes to Patreon supporters.
Does Negi run on Mac and Windows?
Both. The Mac build needs macOS 12 Monterey or later and ships for Apple Silicon and Intel; the Windows build needs Windows 10 (1809) or later, 64-bit and installs for the current user, so it never asks for an administrator password.
Can I use Negi without installing anything?
Yes. try.negi.dance runs the same Standard build as a web page, so nothing is installed and nothing is uploaded. Chrome and Edge can read a model folder directly; Firefox and Safari fall back to a file chooser.
Which file formats does Negi read and write?
Negi reads PMX and PMD models, VMD motions for both characters and the camera, and VPD poses. It writes VMD and VPD, plus a scene file that reopens a whole session as you left it. An imported key keeps its own MMD interpolation bytes through a round trip.
Are my models and motions uploaded anywhere?
No. Every file is read from your disk and stays there, in the desktop build and in the browser one alike. Negi has no account, no server and no telemetry.
How many characters can one scene hold?
Negi Standard animates one character per scene. Stages and lights are not characters and are never capped. Negi Premium removes the limit, and each character carries its own motion on the same timeline.
Is Negi made by the MikuMikuDance author?
No. MikuMikuDance is Yu Higuchi's. Negi is an independent tool that reads and writes MMD's file formats, and it is not affiliated with, or endorsed by, MMD's author or any model's author.
Why does my Mac or PC warn me when I open Negi?
Because the builds are not signed with a paid developer certificate. On macOS, click Done, then open System Settings, Privacy and Security, and choose Open Anyway. On Windows, click More info in the SmartScreen dialog, then Run anyway.
Download
Mac · Apple SiliconM1 and later · 119 MBWindows · 64-bitInstaller · 101 MBMac · Intelx86_64 Macs · 124 MBNegi Premium on PatreonPaid supporters · link coming soon
Not sure which Mac? Apple menu → About This Mac. “Chip” means Apple Silicon; “Processor” means Intel.
All three hold the same app: 1.0.0, built 2026-08-24.
Standard, and what Premium addsStandard puts one character in a scene. Premium puts in as many as your machine can draw, each with its own motion on the same timeline. Everything else is the same app, and the Patreon link lands on the button above once that page is up.