Instead of Splink
Splink alternatives
Splink is a free Python package for linking and deduplicating records that lack unique identifiers. Its Fellegi-Sunter-based method can learn without labeled examples, while term-frequency adjustments and custom fuzzy logic let users shape matching. It generates SQL for DuckDB, Spark, SQLite, or PostgreSQL and includes visualizations for inspecting predictions and clusters. It is suited to standardized data spread across multiple, relatively independent columns, and can scale to very large linkages using big-data backends.
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InterSystems IRIS
by InterSystems IRISFree plan APILinuxMac+3Teams building applications across connected data silos — InterSystems IRIS combines SQL and NoSQL database management, transactions, analytics, and AI capabilities in one data platform.
Pricing on request Visit site - 2
Hightouch
Free plan AndroidAPIiPhone+1Marketing teams activating warehouse customer data — Hightouch adds audience creation, customer journeys, campaigns, and more than 300 integrations rather than focusing on record linkage.
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pyJedAI
Free plan LinuxSelf-hostedWindowsPython teams building varied entity-resolution workflows — pyJedAI offers multiple supervised and unsupervised algorithms for structured and semi-structured data, while Splink centers on Fellegi-Sunter linkage.
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Zingg
Free plan Open source APILinuxMac+1Teams creating unified master data views — Zingg combines machine-learning and deterministic matching, supports persistent entity identifiers, and offers enterprise incremental processing.
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AWS Entity Resolution
Paid APIWebAWS users matching records across data stores — AWS Entity Resolution provides rule-based, ML, and provider matching, plus incremental S3 processing and a near-real-time match lookup API.
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Open Client Registry (OpenCR)
Free plan APILinuxMac+3Healthcare systems linking patient identities — OpenCR focuses on patient identity workflows, including FHIR messages, unique identifiers, and a UI for reviewing and breaking matches.
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NVECTA
Paid AndroidAPIiPhone+1Marketing teams unifying customer profiles and campaigns — NVECTA adds predictive marketing, campaign orchestration, and conversion tools alongside real-time customer profiles from connected systems.
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Equifax Identity Matching
Free plan API - 9
Senzing Entity Resolution
Free plan APILinuxMac+37.1 Visit site - 10
Data Ladder
Free trial APISelf-hostedWindows - 11
Informatica Identity Resolution
Paid LinuxSelf-hostedWindows - 12
DinMo
Paid APIWeb - 13
OpenEMPI
Paid APILinuxSelf-hosted+2 - 14
Precisely Data Matching and Entity Resolution
Paid LinuxSelf-hostedWeb+1 - 15
Lexer Identity Resolution
Paid APIWeb - 16
LiveRamp RampID
Paid APIWeb - 17
Tamr
Paid APISelf-hostedWeb - 18
Epsilon COREid
Paid - 19
Quantexa Entity Resolution
Paid APISelf-hostedWeb - 20
Semcasting Identity Graph
Paid API - 21
Merkury Identity Resolution
Paid Web - 22
Verato Universal MPI
Paid APIWeb - 23
InterSystems EMPI
Paid Web - 24
Treasure AI Identity Resolution
Paid Web - 25
Splink’s trade-offs include a Python-based, self-hosted workflow and its poor fit for a single bag-of-words column. Its developers may also struggle to help with Databricks-specific issues. Alternatives span broader data platforms, marketing systems, entity-resolution frameworks, and patient identity registries, so compare the core job each product is built to do. Consider whether you need matching alone or also campaign tools, unified customer profiles, clinical workflows, or database capabilities, as well as your deployment environment, matching methods, and budget.
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