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OneSchema vs OpenRefine in 2026

OneSchema and OpenRefine compared on what each does, what each costs and what to check before you choose one for cleaning messy data.

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OneSchema and OpenRefine compared on what each does, what each costs and what to check before you choose one for cleaning and mapping messy data.

OneSchema ingests files uploaded from SFTP, API, S3, email or native API connectors to enterprise systems of record [1]. OpenRefine is a free, open source tool for working with messy data: cleaning it and transforming it from one format into another [2]. RoloDexter maps contact field names onto a standard set of 62 fields, and it recognizes emails, phones, URLs and postal codes by what the data looks like [3].

On needs, OneSchema's page covers ingesting enterprise files [1]. OpenRefine's page covers cleaning data on your machine [2]. RoloDexter's claims cover mapping contact fields to a canonical schema with confidence scores [3].

OptionOwn feeWhere data runsInstall
OpenRefineFree, open source tool [2]Cleaned on your machine, not in a cloud [2]Not published in the facts here
OneSchemaIndividual plan $20 per month [4]; 4,000 free credits, then $0.012 per credit [4]; other plan prices not publishedUS data centers [1]; US, EU, CA, AU regions or self-hosted on AWS, GCP, Azure [1]Not published in the facts here
RoloDexterFree, no paid tier [3]; MIT licence [3]Core mapping runs locally without an API key [3]pip or npm [3]; Python 3.10 or newer [3]

What OneSchema and OpenRefine are built for

OneSchema's own page says it can ingest files uploaded from SFTP, API, S3, email, or native API connectors to enterprise systems of record [1]. OneSchema's automated processing ingests, normalizes and validates operational data across smart meters, billing platforms, asset management, SCADA, GIS and regulatory feeds [1].

OpenRefine's own page calls it a free, open source tool for working with messy data [2].

What RoloDexter is built for

RoloDexter is made by the team that publishes this site.

It maps contact field names onto a standard set of 62 fields, trying exact name matches first and looser ones after, and it recognizes emails, phones, URLs and postal codes by what the data looks like [3]. Each field match records a confidence score and the strategy that produced it [3]. It cleans matched values, for example phones to E.164, countries to ISO 3166-1 alpha-2, and unambiguous dates to ISO-8601 [3]. It can pull phone numbers out of free-text values such as notes [3].

You can convert CSV and JSONL files and choose how duplicates and overwrites are handled [3]. A check reports the match rate, which fields were filled, which headers went unmapped and how many warnings there were, without writing mapped output [3]. Large CSV or JSONL exports are processed piece by piece, so memory use stays flat as the file grows [3]. You can resolve headers once and replay that plan on later runs with a JSON plan file [3]. Core mapping runs locally without an API key [3].

Pricing and fees

OneSchema's Individual plan costs $20 per month [4]. Its page says 4,000 free credits, then $0.012 per credit [4]. The sources here do not state dollar prices for other OneSchema plans, so those prices are not published here. [4]

OpenRefine is a free, open source tool for working with messy data [2]. Its page calls it free [2].

RoloDexter is free, and there is no paid tier [3]. It is released under the MIT licence [3].

Setting it up and daily use

OpenRefine cleans data on your machine rather than in a cloud [2]. The facts here do not state how it is installed, so check its own pages.

OneSchema's hosting can be in US, EU, CA and AU regions, or self-hosted on AWS, GCP and Azure [1].

RoloDexter is installed with pip or npm [3]. It ships as a Python package on PyPI and a JavaScript/TypeScript package on npm [3]. The Python package needs Python 3.10 or newer [3]. Day to day, you can convert CSV and JSONL files, with choices for duplicates and overwrites [3], and run a check for the match rate and unmapped headers [3]. Core mapping runs locally without an API key [3].

Things to check before you choose

Ask where you want data processed. OpenRefine cleans data on your machine, not in a cloud [2], while OneSchema offers US, EU, CA and AU region hosting or self-hosted deployments on AWS, GCP or Azure [1]. Check which hosting suits where your data must stay.

Ask what file sources you need. OneSchema's page covers uploads from SFTP, API, S3, email or native API connectors [1]. The facts here say nothing about OpenRefine's file sources, so check its own pages.

Check the fee structure. OneSchema charges $20 per month for the Individual plan and $0.012 per credit after included credits [4][4]. Check whether your data volume fits that model.

Check compliance needs. The facts here do not cover compliance for OpenRefine, so check its own pages.

How to choose

If you want a free, open source tool that cleans data on your machine, OpenRefine's page says that is what it is [2][2].

If you need to ingest enterprise files from SFTP, API, S3, email or native API connectors, OneSchema's page covers that [1].

If you need hosted or self-hosted deployment in several regions, OneSchema's page lists its hosting options [1].

If you want contact fields mapped onto a canonical schema with confidence scores, RoloDexter's claims describe that [3][3].

If you want a free tool that runs locally without an API key, RoloDexter's claims say that [3][3].

Frequently asked questions

Is OpenRefine free to use?

OpenRefine is a free, open source tool for working with messy data [2]. Its page calls it free [2]. Data is cleaned on your machine, not in a cloud [2]. Check its own pages if you need more detail on future plans.

How much does OneSchema cost?

OneSchema's Individual plan costs $20 per month [4]. Its page says 4,000 free credits, then $0.012 per credit [4]. The sources here do not state dollar prices for other plans, so those are not published here.

Is RoloDexter free and open source?

RoloDexter is free, and there is no paid tier [3]. It is released under the MIT licence [3]. Core mapping runs locally without an API key [3]. The only price its claims give is free [3], so check its own pages for any future changes.

How do you install OpenRefine and RoloDexter?

The facts here do not state how OpenRefine is installed, so check its own pages. RoloDexter is installed with pip or npm [3]. It ships as a Python package on PyPI and a JavaScript/TypeScript package on npm [3]. The Python package needs Python 3.10 or newer [3].

Where does each tool process the data?

OpenRefine cleans data on your machine, not in a cloud [2]. OneSchema offers US, EU, CA and AU region hosting or self-hosted deployments on AWS, GCP and Azure [1]. RoloDexter's core mapping runs locally without an API key [3].

RoloDexter is free; there is no paid tier. [3]

Try RoloDexter

Sources

  1. OneSchema, oneschema.co, read 2026-10-08
  2. OpenRefine, openrefine.org, read 2026-10-08
  3. RoloDexter's own description of itself (the product of this site's publisher)
  4. OneSchema, oneschema.co/pricing, read 2026-10-08

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