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Molecular animation software

Molecular animation software that starts from the Protein Data Bank

Animate proteins, nucleic acids and small molecules from their real coordinates. Describe the motion you want, or import a PDB entry and edit the scene yourself in the browser, then render it on cloud GPUs.

Start creating Compare with ChimeraX and PyMOL
Kinesin transport, from one step to the whole body. A sample scene in the Animiotics library. Open it in the editor and change it.

Four ways to animate a protein

There are four common routes from a PDB entry to a moving image, and the right one depends on what you need to show.

ChimeraX and PyMOL are free for academic use and record movies with commands such as turn, rock and morph. They are the quickest way to show one structure rotating or two conformations morphing, and they read every common format. Blender with the Molecular Nodes add-on imports the same structures into a full film studio, where you can build cells, membranes and camera moves by hand, if you are ready to learn Blender. VMD is the standard for playing back molecular dynamics trajectories. Animiotics builds the scene for you from a description, keeps the real coordinates and lets you edit everything afterwards in the browser.

A protein shown as a teal ribbon of helices and sheets, with one loop highlighted in orange
A cartoon representation keeps helices, sheets and loops readable at a glance.

Which tool for which molecular animation

AnimioticsChimeraX or PyMOLBlender with Molecular NodesVMD
A structure turning in placeYesBest fit: one commandYesYes
Morph between two statesYesBest fit: morph commandYesWith scripts
Molecules inside a cell or membraneYes, from a descriptionLimitedYes, by handLimited
Story with several shotsYesHardYes, by handHard
MD trajectory playbackYes, in the editorYesYesBest fit
Skills neededDescribe it in wordsCommand line basicsBlender modeling and animationCommand line and Tcl
Runs onAny browser, phones includedDesktopDesktop with a capable GPUDesktop

Checked October 2026. ChimeraX, PyMOL, Blender, Molecular Nodes and VMD are excellent free tools; Animiotics is for when you need the finished film without building it.

From a PDB ID to a film in Animiotics

  1. Name the structure or attach it

    Mention the protein or PDB entry in your description, or attach your own PDB or mmCIF file up to 10 MB.

  2. Describe the motion

    Say what binds, what changes shape and where the camera should be. The AI records which entries and assemblies it used.

  3. Adjust the representation

    In the editor, show proteins as cartoon, ball-and-stick, stick or space-filling atoms, colored by element, chain or a single color.

  4. Render or share

    Export an MP4 or PNG still, or share a link where viewers can turn the molecule themselves.

Real coordinates, in a real scene

A structure viewer shows the molecule. A film also needs the place it works: a membrane, a crowded cytoplasm, a cell surface. Animiotics places the downloaded coordinates in that context, lights the scene and moves the camera so the important contact stays in view.

The structure stays the one you chose. Change its representation or color in the editor, or ask for a different camera path, and render again.

A protein resting on a lipid bilayer, rendered in 3D against a dark background
A protein placed on a lipid bilayer, the kind of context a structure viewer leaves out.

Formats and sources

Structures

PDB, mmCIF, ENT and SDF uploads, plus search of the Protein Data Bank and AlphaFold from the editor.

Trajectories

Multi-model PDB, XTC with a PDB or mmCIF topology, XYZ and extended XYZ, ASE .traj, XDATCAR and H5, up to 500 MB and 2,000 frames.

Context models

Upload GLB or FBX models or search Sketchfab for cells, organelles and anatomy to place around your molecule.

Outputs

MP4 up to 1920 px at up to 60 fps, lossless PNG, GLB scene export, and STL or 3MF for 3D printing.

Step-by-step guides

If you prefer to build the movie yourself in a desktop tool, these guides walk through it.

ChimeraX animation tutorialScenes and the movie recorder for clear protein movies.Learn moreMolecular Nodes tutorialBuild protein scenes and animations in Blender.Learn morePDB to animationTurn a structure file into a 3D protein story.Learn moreChimeraX morphAnimate the change between two protein structures.Learn more

Molecular animations in the Animiotics library

Coffee and your brain: caffeine blocks the adenosine receptor 43 secondsSandwich ELISA: how a lab test finds one protein 40 secondsDNA hybridization: two strands become a double helix 20 secondsBisulfite conversion: cytosine becomes uracil 55 secondsKinesin transport, from one step to the whole body 33 secondsAntibody blocking a cell-surface receptor 10 seconds

Questions

What is the best software for molecular animation?

It depends on the job. ChimeraX or PyMOL for a quick rotation or morph, VMD for trajectories, Blender with Molecular Nodes for full manual control, and Animiotics when you want a finished, editable film from a description without learning 3D software.

How do I animate a protein from a PDB file?

In ChimeraX, open the entry and record a movie with turn or morph commands. In Animiotics, attach the file or name the entry in your description and the AI builds the animated scene around those coordinates.

Does Animiotics use real protein structures?

Yes. Where a molecule has an experimental structure, the generator downloads its coordinates from the RCSB Protein Data Bank and lists the entry and assembly it used in the scene's sources.

Can I animate molecular dynamics simulations?

Yes. The editor plays back trajectories in several common formats, up to 500 MB and 2,000 frames, and you can render the result like any other scene.

Keep reading

Animiotics vsChimeraX and PyMOLChimeraX and PyMOL are superb for structure analysis and simple movies. Animiotics builds cinematic, story-driven 3D animations from the same PDB data.Read the comparisonAnimiotics vsBlender and Molecular NodesMolecular Nodes brings PDB structures into Blender. Animiotics makes the finished molecular animation from a prompt and renders it in the cloud.Read the comparisonAI scientific animation generatorDescribe a biological process and get an editable 3D scientific animation built from real PDB structures and rendered in the cloud. Not a video generator.Learn moreExample animations3D biology animations you can open in Animiotics: caffeine and adenosine, ELISA, kinesin, antibodies, heart valves, DNA, axolotl regeneration and more.Learn more

Describe it. Watch it move.

Start your first animation from a description, a structure or a photo.

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