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Nextjournal
by Nextjournal
What Nextjournal is
Nextjournal is a notebook for reproducible research and data-driven work, available as a hosted service or for self-hosting. A notebook can use several language runtimes, including Python, R, Julia, Clojure, Bash, JavaScript, and ClojureScript, passing values between them through files. Users can edit together in real time, while automatic version history saves data and the runtime environment and allows earlier changes to be restored. Each running notebook receives a compute instance that shuts down when computation is done; GPU support is also listed. Notebooks can access Amazon S3 and Google Cloud Storage, clone private GitHub repositories, and import Docker Hub images. Import formats include Jupyter, IPython, RMarkdown, and Markdown, with Markdown export available. Published notebooks receive permanent URLs and can be public or limited to group members; published versions are read-only but can be remixed by viewers. A free plan is available with limited concurrent compute and entry-level resources under a fair-use policy. Team starts at $299/month, and Enterprise starts at $499/month; a 14-day trial is listed.
Who it suits
It suits machine-learning researchers, data scientists, library authors, professors, and scientists working with reproducible notebooks. The team features may also suit collaborators who need shared editing and publishing controls.
What it does well
- Supports multiple programming-language runtimes
- Real-time editing and restorable version history
- GPU compute is listed
- Notebooks can be published with permanent URLs
What to know first
- Free plan has limited concurrent compute resources
- Free compute is subject to a fair-use policy
- Team starts at $299/month
Limits
The Free plan has limited concurrent compute resources and entry-level compute under a Fair Use Policy. Although it has no hard compute-time or resource limits, Nextjournal reserves the right to cancel computation it considers excessive on a case-by-case basis.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Unlimited private notebooks · Data & Secrets Management · Limited concurrent compute resources · Entry level compute resources under Fair Use Policy | Free |
| Team | starts at $299/month, including 5 editors · Additional editors $99/month each · Unlimited concurrent compute · High-performance compute · Scheduled notebook runs · ~$240/month of computational credits · Additional compute billed per use | $299 a month |
| Enterprise | starts at $499/month, including 5 editors · Additional editors $125/month each · Hosted or on-prem (AWS, Google Cloud) · Single Sign-On · Priority Slack support · Dedicated compute · ~$400/month of computational credits · Internal publishing | $499 a month |
As nextjournal.com lists them, read 30 Sept 2026. The maker's own page has the final word.
Getting started
- Open Nextjournal at https://nextjournal.com/.
- Use the hosted web service or choose the self-hosted option.
- Choose the Free plan, or consider the listed 14-day trial.
- Import a Jupyter, IPython, RMarkdown, or Markdown notebook, or create a notebook.
Verdict
Nextjournal combines notebooks, runtime and data preservation, collaboration, and publishing for research workflows. Review the free plan’s compute constraints and paid plan starting prices before choosing an option.
Questions
Is Nextjournal free?
Yes. The Free plan costs nothing and includes unlimited private notebooks, data and secrets management, and limited concurrent compute resources. Entry-level compute is under a Fair Use Policy.
How much do the paid plans cost?
Team starts at $299 a month, including five editors; extra editors are $99 a month each. Enterprise starts at $499 a month, also including five editors; extra editors are $125 a month each. A 14-day trial is listed.
Can Nextjournal be self-hosted?
Yes. Nextjournal is available as a hosted web service or for self-hosting. The Enterprise plan lists hosted or on-prem deployment on AWS or Google Cloud.
Which programming languages are supported?
The listed languages are Python, R, Julia, Clojure, Bash, JavaScript, and ClojureScript. A notebook can use multiple runtimes, exchanging values through files.
Can I publish notebooks?
Published notebooks have permanent URLs and can be public or limited to group members. Published versions are read-only and viewers can remix them.
Facts from Nextjournal's own pages
- Audience
- The homepage describes use cases for machine-learning researchers, data scientists, library authors, professors, and scientists. · nextjournal.com, 30 Sept 2026
- Collaboration
- Users can edit notebooks together in real time and create public or private groups. · nextjournal.com, 30 Sept 2026
- Company history
- The About page says the team entered an exploration phase in 2015 and created Nextjournal after exploring reproducibility and scientific tooling. · nextjournal.com, 30 Sept 2026
- Compute
- The service provisions a compute instance for each running notebook and shuts it down automatically when computation is done. · nextjournal.com, 30 Sept 2026
- Fair use limit
- The free plan has no hard compute-time or resource limits, but Nextjournal reserves the right to cancel computation it deems excessive case by case. · nextjournal.com, 30 Sept 2026
- Free plan
- Yes · nextjournal.com, 20 Sept 2026
- GPU support
- The homepage states support for up to 8 NVIDIA Tesla K80, P100, or P100 Workstation GPUs per runtime. · nextjournal.com, 30 Sept 2026
- Headquarters
- Berlin, Germany · nextjournal.com, 28 Sept 2026
- HIPAA
- The pricing FAQ says HIPAA guideline compliance may be possible with the on-prem solution and gives AWS reference architecture as an example. · nextjournal.com, 30 Sept 2026
- Import and export
- Nextjournal supports importing Jupyter, IPython, RMarkdown, and Markdown notebooks and exporting notebooks to Markdown. · nextjournal.com, 30 Sept 2026
- Integrations
- Notebooks can access Amazon S3 and Google Cloud Storage, clone private GitHub repositories, and import images from Docker Hub. · nextjournal.com, 30 Sept 2026
- Polyglot notebooks
- A notebook can use multiple programming-language runtimes, with values exchanged between runtimes using files. · nextjournal.com, 30 Sept 2026
- Publishing
- Published notebooks have permanent URLs and can be public or limited to group members; published versions are read-only and can be remixed by viewers. · nextjournal.com, 30 Sept 2026
- Purpose
- Nextjournal describes itself as a notebook for reproducible research and data-driven research. · nextjournal.com, 30 Sept 2026
- Secrets
- Secrets are stored outside notebooks and computational environments in Vault and can only be read by the user's profile. · nextjournal.com, 30 Sept 2026
- Paid from
- 299 · nextjournal.com, 20 Sept 2026
- Support
- Enterprise priority support is provided through a team-to-team Slack channel, with responses within 24 hours during the week. · nextjournal.com, 30 Sept 2026
- Versioning
- Changes are saved automatically, including data and the full runtime environment, and previous changes can be restored. · nextjournal.com, 30 Sept 2026
Where Nextjournal stands on Freedom251
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- Notebook Software#16 of 25