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MolView.com
Web application for drawing small molecules and reaction mechanisms, viewing 3D models, and exporting chemical figures.
Free with paid plans. 27 of 65 checklist features confirmed.
Official demo
Main canvas
No dark mode
White sketcher and black 3D viewer are the defaults.
Default drawings
Caffeine
Paclitaxel
Cholesterol in 3D
- Default sketcher shows colored heteroatoms beside a black-background 3D viewer.
- Paclitaxel initially exceeded the sketcher viewport at 200% zoom.
- Free PNG exports default to 480 by 480 pixels.
- Infocard isomeric SMILES matched all three inputs in RDKit.
Facts
- Version we tested
- 2026-11-02 (5ecc001a)
- Runs on
- Browser
- License
- Proprietary service with free sketching and viewing; saving and advanced features require subscriptions.
- Price
- 2026-11-05 (USD): Free; Student $9/year; Academic $49/year; Standard $99/user/year; Publisher $250/user/year. Commercial prices exclude tax.
- Plans
- Free: $0; no sign-up (2026-11-06); Student: US$9/year; students only, tax included (2026-11-06); Academic: US$49/year or $19/quarter; tax included (2026-11-06); Standard: US$99/user/year or $19/user/month; excluding tax (2026-11-06); Publisher: US$250/user/year; excluding tax (2026-11-06); Institution: Contact vendor (2026-11-06); Enterprise: Contact vendor (2026-11-06)
- Relies on
- Not established. Vendor describes sketcher algorithms developed from scratch; third-party chemistry libraries are undisclosed.
- Draws with
- In-house vector-outline rendering algorithms (vendor statement)
- Main language
- Not published
- Other languages
- JavaScript: Browser UI and OpenChemLib worker; C++: RDKit cleanup compiled to WebAssembly
- Renderer
- Original: MolView vector-outline renderer
- Third-party licenses
- Permissive licenses for third-party components, according to the vendor.
- Free cannot save diagrams; Student excludes custom styling and SVG/SDF/XYZ export.
- Standard allows 10 SVG exports monthly; for-profit content creation requires Publisher.
- New MolView.com excludes legacy crystal-lattice and protein viewers.
In use
Screenshots from our test of this version.
Single, double and triple bonds
Single, double, and triple bonds in the sketcher.
Wedge, hash and wavy bonds
Solid and hashed wedge bonds on a structure.
Dative, hydrogen and quadruple bonds
Bond menu lists delocalized and hydrogen bonds.
Ring tools
Benzene on the canvas with ring tools visible.
Charges, isotopes and atom labels
Element palette and nitrogen and oxygen labels in the sketcher.
Formula and mass
Caffeine Infocard shows molecular formula and weight.
Name to structure
Aspirin search and its structure in the sketcher.
Structure to name
Caffeine Infocard displays a common name and IUPAC name.
Online structure lookup
Caffeine Infocard includes a PubChem link and identifiers.
3D model view
Aspirin structure alongside a ball-and-stick 3D model.
MOL and SDF
Export menu lists 2D and 3D SDF/MOL files.
SMILES
Caffeine Infocard displays canonical and isomeric SMILES.
InChI
Caffeine Infocard displays an InChI and InChI key.
SVG export
SVG export selection shows a subscription required dialog.
High-resolution PNG
PNG export dialog shows 480p and a high-resolution subscription notice.
Features
- Tested by running it
- Seen in the app
- The manual says yes
- Partly, with the reason shown
- Not supported
- Not established, which is not the same as no
Select a mark for its proof. A filled mark opens our screenshot, or the manual if the check left nothing to picture. A ring opens the manual.
Drawing structures
- Yes, tested by running it: Single, double and triple bonds visible and drawn. Opens the screenshot.Single, double and triple bondsSingle, double and triple bonds visible and drawn.molview.com
- Partly: Solid wedge and hashed wedge drawn; wavy option not seen. Opens the screenshot.Wedge, hash and wavy bondsSolid wedge and hashed wedge drawn; wavy option not seen.molview.com
- Partly: Hydrogen/incipient types documented; dative absent from published bond-type model. Opens the cited page.Dative, hydrogen and quadruple bondsHydrogen/incipient types documented; dative absent from published bond-type model.molview.com
- Not establishedChoose double-bond side
- Yes, tested by running it: Placed benzene; several other ring tools visible. Opens the screenshot.Ring toolsPlaced benzene; several other ring tools visible.molview.com
- Not establishedChair and Haworth rings
- Yes, seen in the app: Linear chain tool visible. Opens the cited page.Chain toolLinear chain tool visible.
- No: Only ring templates visible in inspected toolbar. Opens the cited page.Template libraryOnly ring templates visible in inspected toolbar.
- Not establishedSave your own templates
- Not establishedGroup abbreviations
- Partly: Element palette visible; custom label tool has subscription marker. Opens the screenshot.Charges, isotopes and atom labelsElement palette visible; custom label tool has subscription marker.
- Yes, according to the manual: Lone pairs and unpaired electrons can be edited. Opens the cited page.Radicals and lone pairsLone pairs and unpaired electrons can be edited.molview.com
- Not establishedKeyboard drawing
- Yes, seen in the app: Pointer and lasso tools visible. Opens the cited page.Lasso select and transformsPointer and lasso tools visible.
- Not establishedTilt drawings in perspective
Reactions and mechanisms
- Partly: Forward arrow tool prompts for subscription. Opens the cited page.Reaction arrowsStudent. Forward arrow tool prompts for subscription.molview.com
- Partly: Electron arrow tool prompts for subscription. Opens the cited page.Curved mechanism arrowsStudent. Electron arrow tool prompts for subscription.molview.com
- Not establishedMachine-readable reactions
- Not establishedAtom mapping
- Not establishedOrbitals and symbols
Figures and layout
- Not establishedRich text captions
- Not establishedShapes, brackets and curves
- Not establishedAlign and distribute
- Not establishedGroup and ungroup
- Yes, according to the manual: Vendor claim: automatic structure cleanup. Opens the cited page.2D structure cleanupVendor claim: automatic structure cleanup.molview.com
- Not establishedJournal drawing styles
- Partly: Style controls have subscription marker. Opens the cited page.Reusable custom stylesStyle controls have subscription marker.
- Yes, according to the manual: API supports per-object color marks; custom styling requires higher paid plans. Opens the cited page.Color controlAcademic. API supports per-object color marks; custom styling requires higher paid plans.molview.com
- Not establishedColor highlighting
- Not establishedPage layout and multipage
- Not establishedImported pictures
- Not establishedTLC plates and tables
Chemistry intelligence
- Not establishedStructure checking
- Not establishedR/S and E/Z labels
- Yes, tested by running it: Caffeine Infocard shows C8H10N4O2 and molecular weight 194.19. Opens the screenshot.Formula and massCaffeine Infocard shows C8H10N4O2 and molecular weight 194.19.
- Not establishedProperty estimates
- Yes, tested by running it: Searched aspirin and selected exact result. Opens the screenshot.Name to structureSearched aspirin and selected exact result.molview.com
- Yes, tested by running it: Caffeine SMILES Infocard returned common and IUPAC names via PubChem. Opens the screenshot.Structure to nameCaffeine SMILES Infocard returned common and IUPAC names via PubChem.
- Not establishedNMR prediction
- Yes, according to the manual: R-group atom labels, including optional numbering. Opens the cited page.R-groups and query structuresR-group atom labels, including optional numbering.molview.com
- Partly: Bracket tool visible. Opens the cited page.Polymers and repeat unitsBracket tool visible.
- Not establishedPeptides and nucleic acids
- Not establishedImage to structure
- Yes, tested by running it: Infocard identified caffeine using PubChem. Opens the screenshot.Online structure lookupInfocard identified caffeine using PubChem.molview.com
- Yes, tested by running it: Generated and displayed cholesterol 3D from SMILES. Opens the screenshot.3D model viewGenerated and displayed cholesterol 3D from SMILES.molview.com
- No: New app explicitly excludes crystal-lattice viewing. Opens the cited page.Crystal structuresNew app explicitly excludes crystal-lattice viewing.molview.com
Files and exchange
- No: No CDXML choice in inspected import or export menus. Opens the cited page.CDXML import and exportNo CDXML choice in inspected import or export menus.
- Not establishedCDX import and export
- Partly: MOL/SDF import and export both require subscription. Opens the screenshot.MOL and SDFStudent. MOL/SDF import and export both require subscription.molview.com
- Yes, tested by running it: Loaded SMILES; Infocard displays isomeric SMILES. Opens the screenshot.SMILESStudent. Loaded SMILES; Infocard displays isomeric SMILES.molview.com
- Yes, according to the manual: Vendor claim: search accepts InChI and InChIKey. Opens the cited page.InChIVendor claim: search accepts InChI and InChIKey.molview.com
- Not establishedRXN files
- Partly: SVG option requires subscription. Opens the screenshot.SVG exportAcademic. SVG option requires subscription.molview.com
- No: No PDF choice in inspected export menus. Opens the cited page.PDF exportNo PDF choice in inspected export menus.
- Partly: Downloaded 480-pixel PNG; higher resolutions require subscription. Opens the screenshot.High-resolution PNGDownloaded 480-pixel PNG; higher resolutions require subscription.
- Not establishedPaste to and from ChemDraw
- Not establishedEditable in Word or PowerPoint
- Not establishedWindows Office OLE
APIs and automation
- Not establishedPython API
- Yes, according to the manual: Documented JavaScript web-component API; subscription and client ID required. Opens the cited page.JavaScript or TypeScript APIStudent. Documented JavaScript web-component API; subscription and client ID required.molview.com
- Not establishedCommand-line tool
- Not establishedAI agent control
- Not establishedBuilt-in AI assistant
Embedding and extension
- Not establishedPlugins
- Yes, according to the manual: Load api.js with client ID, then insert <molview-sketcher>. Opens the cited page.Embed in your own appStudent. Load api.js with client ID, then insert <molview-sketcher>.molview.com