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Research · head to head

Chemaxon vs Roam Research

Chemaxon logo

Chemaxon

Research

Cheminformatics toolkits and structure handling, now a Certara subsidiary

From
On request
Rated
-
Full reviewWebsite
Roam Research logo

Roam Research

Research

A note-taking tool for networked thought

From
$15/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Chemaxon the October 2024 Certara acquisition ended two decades of vendor neutrality, and organisations that embedded JChem precisely because Chemaxon competed with nobody now depend on a component owned by a company that sells into their accounts.; Roam Research cloud-dependent: no local-first option, all data stored on Roam servers
  • They diverge on capability: Chemaxon covers Marvin, Roam Research covers Bi-directional linking.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Chemaxon and Roam Research actually diverge.

Attributes where Chemaxon and Roam Research differ
AttributeChemaxonRoam Research
Starting priceOn request$15/month
Pricing modelquoteUnknown
PlatformsWeb, Windows, macOS, Linux, On-premise, APIWeb, iOS, macOS, Windows
FoundedUnknown2017

Identical on both: free tier (No), user rating (Not yet rated), category (Research).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Chemaxon

  • Marvin
  • JChem toolkits
  • Calculator Plugins
  • Compound Registration
  • Instant JChem
  • Design Hub
  • Free academic package
  • Embedded redistribution

Only in Roam Research

  • Bi-directional linking
  • Block references
  • Daily notes
  • Graph visualization
  • Sidebar navigation
  • Version history
  • Markdown support
  • TODO management

What people use each for

The jobs each tool is most often brought in to do.

Chemaxon

  • A software vendor embedding a structure sketcher and search into its own product rather than writing chemistry codenot Roam Research
  • A pharmaceutical informatics team building an internal compound registration system on JChem cartridgesnot Roam Research
  • A computational chemistry group needing consistent pKa and logD prediction across a screening cascadenot Roam Research
  • A university teaching cheminformatics that can use the free two-year academic package for a classnot Roam Research

Roam Research

  • Research notesnot Chemaxon
  • Writing projectsnot Chemaxon
  • Personal knowledge managementnot Chemaxon
  • Academic worknot Chemaxon
  • Creative thinkingnot Chemaxon

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Chemaxon

  • The October 2024 Certara acquisition ended two decades of vendor neutrality, and organisations that embedded JChem precisely because Chemaxon competed with nobody now depend on a component owned by a company that sells into their accounts.
  • Licensing is genuinely complicated, with different terms for named users, servers, desktop applications and embedded redistribution, so working out what you are allowed to deploy usually requires a conversation rather than reading a document.
  • The free academic package is granted for two-year terms and covers education rather than research, so a research group that assumed it was free discovers it needs a paid commercial academic licence.
  • Nothing is priced publicly for commercial use, so a team evaluating Chemaxon against open source alternatives such as RDKit cannot compare total cost without entering a sales process.
  • Open source cheminformatics has closed much of the functional gap for basic structure handling and search, so the commercial case increasingly rests on prediction quality, support and registration workflows rather than on capability that cannot be obtained elsewhere.

Roam Research

  • Cloud-dependent: no local-first option, all data stored on Roam servers
  • Offline sync issues: offline databases experience slow startup and synchronization problems
  • No native Android app
  • Requires internet connection for most functionality

Pricing, plan by plan

Chemaxon

On request
  • Academic package$undefined/year
    • Free of charge for education for a two-year term
    • Covers a class including tutor and students, or an applicant faculty
    • Non-commercial research use only
  • Commercial licence$undefined/year
    • Quoted per named user, per server or per redistributed application
    • Toolkits, desktop applications and embedded redistribution licensed separately
    • Annual support and maintenance included in the subscription

Roam Research

$15/month
  • Pro$15/month
    • Unlimited graphs
    • Unlimited blocks
    • Daily notes
  • Believer$500/5 years
    • All Pro features
    • Cost effective long-term subscription

Which should you pick?

Choose Chemaxon if

  • You need marvin.
  • You work on Web, Windows, macOS, Linux, On-premise, API.
  • You also want jchem toolkits.
Chemaxon review

Choose Roam Research if

  • You need bi-directional linking.
  • You work on Web, iOS, macOS, Windows.
  • You also want block references.
Roam Research review

Questions people ask

Is Chemaxon or Roam Research better?
Neither clearly leads. Chemaxon starts at On request and Roam Research at $15/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Chemaxon or Roam Research?
Chemaxon starts at On request and Roam Research at $15/month.
Does Chemaxon or Roam Research run on more platforms?
Chemaxon runs on Web, Windows, macOS, Linux, On-premise, API. Roam Research runs on Web, iOS, macOS, Windows.
What is Chemaxon best used for?
Chemaxon is most often used for a software vendor embedding a structure sketcher and search into its own product rather than writing chemistry code, a pharmaceutical informatics team building an internal compound registration system on jchem cartridges, a computational chemistry group needing consistent pka and logd prediction across a screening cascade, a university teaching cheminformatics that can use the free two-year academic package for a class. Of those, a software vendor embedding a structure sketcher and search into its own product rather than writing chemistry code and a pharmaceutical informatics team building an internal compound registration system on jchem cartridges are not what Roam Research is typically brought in for.
What can Chemaxon do that Roam Research cannot?
Chemaxon covers Marvin, JChem toolkits, Calculator Plugins, Compound Registration. Roam Research covers Bi-directional linking, Block references, Daily notes, Graph visualization.

Answered from the vendors’ own pages

Chemaxon: Is Chemaxon still independent?

No. It has been a subsidiary of Certara since October 2024. The products continue under the Chemaxon name.

Roam Research: Does Roam Research have a free plan?

No, Roam Research does not offer a free plan. However, it includes a 31-day free trial before requiring a subscription to either the Pro plan ($15/month) or Believer plan ($500 for five years).

Source
Chemaxon: Is the academic licence really free?

The education package is free for two-year terms covering a class or faculty. Non-commercial research groups pay a discounted commercial academic licence.

Roam Research: Can I use Roam Research offline?

Roam Research has limited offline support. Offline databases have significant performance issues, including slow startup times and sync problems. The platform is cloud-dependent and requires internet connectivity for most functionality.

Source
Chemaxon: Can I ship Chemaxon inside my own software?

Yes, but embedded redistribution is licensed separately from internal use and must be negotiated.

Roam Research: What platforms does Roam Research support?

Roam Research is available as a web app and native mobile apps for iOS and macOS. Windows users access it through the web app or Electron desktop wrapper. Android support is limited.

Source
Chemaxon: How does it compare with RDKit?

RDKit is free and covers basic structure handling well. Chemaxon differentiates on property prediction, registration workflows, the sketcher and commercial support.

Roam Research: Can I export my data from Roam Research?

Yes, you can export your entire database or individual pages as JSON or Markdown format by clicking the three-dot menu. However, block references do not translate perfectly, and migration to other tools may require manual cleanup.

Source
Roam Research: Does Roam Research integrate with Slack?

Roam Research integrates with Slack through Zapier, allowing you to send Slack messages to Roam or add Slack messages to your Roam daily notes. No native Slack integration is available.

Source
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