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MolView

Free plan APISelf-hostedWeb

What MolView is

MolView is a web app for sketching and viewing small molecules, with API access also available. Its sketcher supports structural formulas, reaction and electron-pushing arrows, configurable styles, and keyboard shortcuts. A 3D viewer synchronizes with the sketch as the molecule changes, and chemical search accepts common names, IUPAC names, SMILES, InChI, InChIKey, or molecular formulas. The app can save and load sketcher and viewer content and create shareable links on plans that include saving. Export options include structural data and SVG, though advanced export varies by plan. Developers can embed a sketcher component in vanilla JavaScript or React and customize its toolbar and diagram style. The free plan requires no sign-up and permits searching, sketching, and viewing small molecules, but diagrams cannot be saved. The Student plan costs $9 a year; Publisher is $250 a year, Academic is $4,919 a year, and Standard is $9,919 a year. MolView is developed by Bergwerf Labs in the Netherlands and says it was founded in 2014.

Who it suits

MolView is aimed at students, teachers, authors, and developers working with small molecules. Its embeddable sketcher and API access may suit developers integrating chemical sketching into web projects.

What it does well

3D viewer syncs automatically with the sketching canvas
Searches by names, molecular formula, and chemical identifiers
Supports reaction arrows and electron-pushing arrows
Free plan needs no sign-up
Embeddable component supports vanilla JavaScript and React

What to know first

Free plan cannot save diagrams
Student plan excludes advanced export and custom styling
API sketcher is available to subscribers
New app omits protein, crystal lattice, and spectroscopy viewing

Limits

The Free plan does not save diagrams. Student costs $9 a year and excludes custom styling and advanced SVG, SDF, and XYZ export; Standard allows up to 10 SVG exports per month.

Plans

Plan	Billed and limits	Price
Free	No sign-up · search, sketch and view small molecules · diagrams cannot be saved	Free
Publisher	$250/user/year excluding sales tax · Commercial use · all features · unlimited publication-quality SVG export	$250 a year
Academic	$49/year or $19/quarter including sales tax · All features · molecular data exports · custom diagram/3D styling · unlimited publication-quality SVG · no commercial use	$49 a year
Student	$9/year including sales tax · Students only · save/load files · reaction mechanisms · no custom styling · no SVG/SDF/XYZ export	$9 a year
Standard	$99/user/year or $19/user/month excluding sales tax · Commercial use · all features · not for content creators/publishers · up to 10 SVG exports monthly	$99 a year
Enterprise	Contact us · Single sign-on · enterprise support and new features · developer API for Web Components	On request
Institution	Contact us · Single sign-on · volume discount · smart homework systems	On request

As molview.com lists them, read 15 Oct 2026. The maker's own page has the final word.

Getting started

Open https://molview.com/.
Use the Free plan without signing up to search, sketch, and view small molecules.
Choose a paid plan if you need saving, loading, or plan-specific export features.
For embedding, use the sketcher web component in a vanilla JavaScript or React codebase.
For API sketcher production use, subscribe or obtain a production-domain license.

Verdict

MolView provides a free way to search, sketch, and view small molecules, with saving and advanced export varying by plan. Developers should note that production API use requires a subscription or production-domain license.

Questions

Is MolView free?

Yes. The Free plan costs nothing and requires no sign-up, but diagrams cannot be saved.

What does the Student plan cost?

Student costs $9 a year, billed with sales tax included. It is for students and includes saving and loading files and reaction mechanisms.

Which platforms does MolView support?

The listed platforms are web and API.

Can developers embed MolView?

The embeddable sketcher web component works with vanilla JavaScript and React, with customizable toolbar and diagram style. API sketcher access is for subscribers; production use by other users requires each user to subscribe or a production-domain license.

Who develops MolView?

MolView says it is developed and operated by Bergwerf Labs, based in the Netherlands.

Does the new app include protein or spectroscopy viewing?

No. The new app focuses on sketching and small molecules and does not include protein, crystal lattice, or spectroscopy viewing features listed for the old app.

Facts from MolView's own pages

3D rendering: Rendering options include ball-and-stick, licorice and spacefill models, background choices, size controls, material parameters and lighting parameters. · molview.com, 15 Oct 2026
API access limit: The API sketcher is available to subscribers, and production use for other users requires each user to subscribe or a production-domain license. · molview.com, 8 Oct 2026
API data handling: The API exposes save/load diagram objects plus import/export functions such as SMILES conversion. · molview.com, 15 Oct 2026
API licensing limit: Production embedding for general visitors requires a domain license or individual MolView subscriptions; a client ID is requested from account settings. · molview.com, 15 Oct 2026
Audience: The maker presents MolView for students, teachers, authors, and developers. · molview.com, 8 Oct 2026
Availability disclaimer: The terms do not guarantee uninterrupted or error-free operation and note that some features depend on external web services. · molview.com, 15 Oct 2026
Chemical data: Infocards provide identifiers and PubChem links, and structural data can be exported as SDF. · molview.com, 15 Oct 2026
Chemical search: Search accepts common names, IUPAC names, SMILES, InChI, InChIKey and molecular formulas. · molview.com, 15 Oct 2026
Cloud and sharing: Paid users can save and load sketcher/viewer content and create shareable links. · molview.com, 15 Oct 2026
Cloud saving: The app can save and load sketcher and viewer content and create shareable links. · molview.com, 8 Oct 2026
Company: MolView says it is developed and operated by Bergwerf Labs, based in the Netherlands. · molview.com, 8 Oct 2026
Company headquarters: LinkedIn lists Amsterdam, Netherlands as MolView's headquarters. · nl.linkedin.com, 15 Oct 2026
Company size: LinkedIn lists MolView at 2–10 employees. · nl.linkedin.com, 15 Oct 2026
Content rights: Users retain intellectual property in their created diagrams but grant MolView a permanent royalty-free operational license to host, display and process that content. · molview.com, 15 Oct 2026
Data and hosting: The privacy policy says its server is in the United States, its database runs on a ScalaHosting VPS, and account removal can be requested by email. · molview.com, 8 Oct 2026
Developer API: The embeddable sketcher Web Component works in vanilla JavaScript and React, with client-ID authentication and customizable toolbar and diagram styling. · molview.com, 15 Oct 2026
Developer integration: The embeddable sketcher web component can be used in vanilla JavaScript and React codebases and supports customization of its toolbar and diagram style. · molview.com, 8 Oct 2026
Diagram styling: Skeletal mode, fonts, colors and implicit carbon/hydrogen rendering can be configured. · molview.com, 15 Oct 2026
Documentation: The help center page says it is under construction, while the site links tutorials, a user manual and API references. · molview.com, 15 Oct 2026
Export: The feature list includes structural data export, SVG export, transparent backgrounds, and custom image resolution. · molview.com, 8 Oct 2026
Founded: LinkedIn lists MolView as founded in 2012. · nl.linkedin.com, 15 Oct 2026
Image export: Image export supports transparent backgrounds, custom resolution and SVG vector output. · molview.com, 15 Oct 2026
Independent trust signal: ScamAdviser judged molview.com likely legitimate, citing a valid SSL certificate and DNSFilter safety, but noted low Tranco traffic rank. · scamadviser.com, 15 Oct 2026
Integrations: The legacy service retrieves data from PubChem, RCSB Protein Data Bank, NIST Chemistry WebBook, Crystallography Open Database and NCI/CADD Chemical Identifier Resolver. · github.com, 15 Oct 2026

Where MolView stands on Freedom251

Chemistry Simulation Software#10 of 33