Tech riderRev. 20 Sept 2026
- 1Runs onAPI, Linux, Mac, self-hosted, Windows
- 2CostsNot stated by the maker
- 3Fuzzy matchingYes
- 4API accessYes
3 lines stated Written from the maker's own pages: github.com

Overview
dedupe is ranked #13 of 27 in data deduplication software on Specifiction. It runs on API, Linux, macOS, Self-hosted, Windows.
Compared on data deduplication software
- Fuzzy matching
- Yesgithub.com
- API access
- Yesgithub.com
Facts
- Product status
- Dedupe.io was shut down on January 31, 2023; its team says it now focuses on consulting through DataMade.dedupe.io · 4 Oct 2026
- Open source library
- dedupe is a Python library that uses machine learning for fuzzy matching, deduplication and entity resolution on structured data.github.com · 4 Oct 2026
- Training
- The library uses human-labeled examples to learn rules for finding similar records, including in very large databases.docs.dedupe.io · 4 Oct 2026
- Use cases
- The project describes using dedupe to remove duplicate spreadsheet entries, link customer and order records without unique IDs, and identify people across campaign contribution records.github.com · 4 Oct 2026
- Features
- The documentation lists machine learning from labeled data, laptop execution, library integration, extensible data types and comparators, and open-source licensing as features.docs.dedupe.io · 4 Oct 2026
- Installation
- The documented installation command is `pip install dedupe`.docs.dedupe.io · 4 Oct 2026
- Self-hosting
- The developer page says Python developers can run the library on local machines or servers and build self-hosted entity-resolution pipelines.dedupe.io · 4 Oct 2026
- API
- The former Dedupe.io web API supported matching and training against projects through REST calls, including incremental checks, matches and additions after deduplication.dedupe.io · 4 Oct 2026
- Integrations
- The project describes dedupe as a library that can be integrated into applications or import scripts; it also documents CSV deduplication through the separate csvdedupe command-line tool.docs.dedupe.io · 4 Oct 2026
- Web service workflow
- The former Dedupe.io service described a workflow to upload data, train a model, review automatically found matches, and download results.dedupe.io · 4 Oct 2026
- Data formats
- The former service’s FAQ says uploads accepted Excel spreadsheets and CSV files, with one record per row and column names in the first row.dedupe.io · 4 Oct 2026
- Training limit
- The former service required at least 10 positive and 10 negative record-pair examples during training.dedupe.io · 4 Oct 2026
- Privacy
- The former service’s FAQ says its privacy policy prohibited renting or selling user data and third-party access without signed consent, and limited company access to debugging and service improvement.dedupe.io · 4 Oct 2026
- Compliance
- The former service’s FAQ states it was certified compliant with FERPA as of July 2019.dedupe.io · 4 Oct 2026
- Support
- The project directs users to GitHub Issues for bugs and lists a mailing list for the open-source library; the former service also offered project setup consulting.github.com · 4 Oct 2026
Company
- Headquarters
- Chicago, Illinois, United Statesgithub.com · 28 Sept 2026
Best dedupe alternatives
See all 20 All accessCh 01 Plauti Deduplicate Free planFree trialAPI Free to start7.4 All accessCh 02 Tilores Free planAPILinux Free to start7.4 All accessCh 03 Senzing Entity Resolution Free trialAPILinux from $4,880/mo7.3 All accessCh 04 Workbooks Free trialWebiOS from $47/mo7.2 All accessCh 05 DataMatch Enterprise Free trialAPILinux 7.0 All accessCh 06 DQE One Unify Free trialAPIself-hosted 7.0
Where it ranks on Specifiction
Is dedupe yours?
Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.
Sources
- dedupe.io· checked 4 Oct 2026
- github.com/dedupeio/dedupe· checked 4 Oct 2026
- docs.dedupe.io/en/latest/· checked 4 Oct 2026
- dedupe.io/developers/· checked 4 Oct 2026
- dedupe.io/documentation/faq· checked 4 Oct 2026


