# Clean by Similarity API Reviews
**Vendor:** Similarity API  
**Category:** [Data Quality Tools](https://www.g2.com/categories/data-quality)  
**Average Rating:** 5.0/5.0  
**Total Reviews:** 1
## About Clean by Similarity API
Clean by Similarity API finds duplicate contacts, leads, and company names in your spreadsheets — even when they're spelled differently across records. Unlike Excel's Remove Duplicates or your CRM's built-in deduplication, Clean uses fuzzy matching to catch real-world variants: "Acme Corp" and "Acme Corporation", "Jen Walsh" and "Jennifer Walsh", "Microsoft" and "Microsoft Inc." are all correctly identified as duplicates. Exact-match tools miss these entirely. Upload a CSV or Excel file, select which columns to match on, and preview your duplicate clusters before downloading. Match on a single column or combine name and company together for more reliable results — combining two weak signals into one strong match decision. Three output formats: a clean file with duplicates removed, your original file flagged with cluster IDs, or a review sheet showing duplicate groups with similarity scores for manual inspection before merging. Free for files up to 1,000 rows, no account required. Larger files from $4.99 per run — pay once, download immediately, no subscription needed. Built for marketing ops, RevOps, and anyone who needs a clean file before a CRM import, not a coding project.




## Clean by Similarity API Reviews
  ### 1. Fast, Accurate Data Deduplication with Handy Company Suffix Removal

**Rating:** 5.0/5.0 stars

**Reviewed by:** Verified User in Research | Enterprise (> 1000 emp.)

**Reviewed Date:** April 10, 2026

**What do you like best about Clean by Similarity API?**

Deduplicates my data quickly and well. I like that I can remove company suffixes before I get my data matched which is perfect for the data I have.

**What do you dislike about Clean by Similarity API?**

I wish it was integrated into Google Sheets so I don't have to go to a separate website.

**What problems is Clean by Similarity API solving and how is that benefiting you?**

Deduplicating my data which usually have a ton of near-duplicates. This used to be a tedious process, especially for larger files.



- [View Clean by Similarity API pricing details and edition comparison](https://www.g2.com/products/clean-by-similarity-api/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-01+01%3A01%3A59+-0500&secure%5Bsession_id%5D=2fd73017-addc-4d53-bc1f-13a5a80ca64d&secure%5Btoken%5D=33138cc2e88b37b848260ee31876d5f51b941f5205c1c9e37bca3c16f3bc60cf&format=llm_user)

## Clean by Similarity API Features
**Functionality**
- Identification
- Correction
- Normalization
- Preventative Cleaning
- Data Matching

**Management**
- Reporting
- Automation
- Quality Audits
- Dashboard
- Governance

**Generative AI**
- AI Text Generation
- AI Text Summarization

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