Mito vs OpenRefine (2026): which should you pick?
As of Nov 13, 2026, OpenRefine grades higher than Mito: 2.8 against 2.0 out of 4.0.
Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA
OpenRefine grades higher on value for money, the free plan and ease of use. They get the same grade on features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Mito
Jupyter extensions: spreadsheet view and AI chat that write Python
OpenRefine
Free open-source desktop tool for cleaning and transforming messy data
Which one is for you
Pick Mito if
- Fits if you already work in Jupyter and want to edit a dataframe by clicking
- Works for analysts who want the Python written for them
Look elsewhere if
- Skip it if you want a stand-alone spreadsheet, as it runs inside notebooks
- Tight if you stay free, since AI stops at 150 completions a month
- Pricey if you need turn-off-telemetry or dedicated support, which are Pro at $20 a user
- Watch out: admin controls, database integrations and on-prem AI are Enterprise only
Pick OpenRefine if
- Fits if you have a messy list of names or addresses to tidy
- Works for people who reconcile data against Wikidata
Look elsewhere if
- Skip it if you want to build models with formulas, as there's no formula grid
- Too light for charts or dashboards, since it is a cleaning tool
- Tight if you want paid support, as help comes from a forum and chat
- Watch out: expect a learning curve before the clustering features pay off
How we grade them
| 2.0GPAMitoFair | 2.8GPAOpenRefineGood | |
|---|---|---|
| Value for money | CPro is $20 a user a month, in the upper middle of what this category charges. | AFree under the BSD 3-clause licence to download and run, with donations welcome. |
| Free plan and trial | BThe Open Source plan is free with the basic spreadsheet and 150 AI completions a month. The AI cap is one you'll reach. | AFree outright, with no cap or paid tier. |
| Features | CSpreadsheet view of a dataframe, AI chat, agent and autocomplete, with your own LLM keys. It is a Jupyter extension, not a stand-alone spreadsheet. | CFaceting, clustering, reconciliation and undo. It cleans data well but has no cell formula grid, so it is a different job from a spreadsheet. |
| Ease of use | DYou need a Jupyter Lab or JupyterHub setup and some Python to use it. No store rating on record. | CYou download and run it, then learn faceting and its expression language. No store rating on record, and the Windows zip includes its own Java. |
| Platforms and integrations | CLives inside Jupyter notebooks, with hooks for Streamlit and Dash; no apps of its own. | CA program for computers only, on Windows, Mac and Linux, linking to Wikidata and Wikibase. |
| Best for | a spreadsheet view and AI chat inside Jupyter | cleaning messy data on your own computer |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Mito and OpenRefine. How we grade
Price against what you get
Mito starts at $20 a month for each person and scores 1.7 out of 4 on features, ease of use and platforms. OpenRefine has no paid plan and scores 2.0.
OpenRefine scores higher and starts $20 a month lower. Of the other spreadsheet and database tools on the chart, 39 score higher than Mito for less, and none scores higher than OpenRefine for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Mito also covers chat assistant.
At a glance
| Mito | OpenRefine | |
|---|---|---|
| Pricing | Free plan | Free |
| Starts at | $20 per user / month (Pro) | Free |
| Free plan | Open Source plan: 150 AI completions a month, AI chat, agent and autocomplete, and the basic Mito Spreadsheet, with community support. | None |
| Free trial | None listed | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| Made by | Mito | OpenRefine contributors |
| Price read from | trymito.io | openrefine.org |
| Checked | Nov 13, 2026 | Nov 13, 2026 |
Worth knowing
Mito
- It runs inside Jupyter Lab, JupyterHub or similar notebook environments, not as a standalone spreadsheet app.
- The free plan caps AI use at 150 completions a month.
- Admin settings, database integrations and on-prem AI are Enterprise features.
- The home page shows a waitlist for a newer product alongside the extensions.
OpenRefine
- It is a data-cleaning tool, not a spreadsheet: there is no cell formula grid to build models in.
- Downloads are a Windows installer or zip, a Mac DMG and a Linux tar.gz; the Windows zip includes an embedded Java install.
- Support comes from a community forum and chat rather than a paid vendor.
Key features
Mito
- Spreadsheet view of a dataframe
- Pivot tables, filtering, sorting, merges, deduplication and Excel-style formulas, with Python code generated for each step.
- AI chat, agent and autocomplete
- Works from the notebook's cell context and kernel state, and can update the notebook for you.
- Bring your own LLM keys
- The site lists Azure, AWS, LiteLLM and other providers, and says enterprises send no data to Mito.
- Embeds in apps
- The plans page lists Mito in Streamlit and Dash as well as Jupyter.
- Database and file import
- CSV, XLSX and dataframe import and export are in every plan; database import and remote files are in the comparison table.
OpenRefine
- Faceting
- Drill through large datasets with facets and apply operations to the filtered view.
- Clustering
- Merges similar values to fix inconsistencies, using the project's heuristics.
- Reconciliation
- Matches your dataset to external databases through reconciliation services.
- Infinite undo and redo
- Rewind to any earlier state and replay the operation history on a new version of the data.
- Wikibase editing
- Contribute data to Wikidata and other Wikibase instances.
Plans
Mito
Open Source$0
150 AI completions a month, basic Mito Spreadsheet, community support.
Pro$20
per user / month (billing basis not stated)
Unlimited AI completions, advanced Mito Spreadsheet, the option to turn off telemetry, and dedicated support.
EnterpriseCustom
Admin controls, LLM and database integrations and training programs; contact sales.
OpenRefine
Free$0
Free software under the BSD 3-clause license; the project accepts donations.
Common questions
Which is cheaper, Mito or OpenRefine?
As of Nov 13, 2026, OpenRefine is cheaper to start with: it is free, against $20 a month for each person for Mito. Mito starts at $20 per user / month (Pro), and OpenRefine is free.
Which has a free plan, Mito or OpenRefine?
As of Nov 13, 2026, both Mito and OpenRefine have a free plan.
Which platforms do Mito and OpenRefine run on?
As of Nov 13, 2026, only Mito lists a web app and only OpenRefine lists macOS, Windows and Linux apps. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.