Clean — by Similarity API
Pick the right tool for the job
Compare two files, dedupe a single list, or build it into your product with the API.
Compare two things
Two lists or files
From a bare list of usernames to structured CSVs with shared keys — pick the shape that matches your data.
LISTS
Compare two lists
Drop two lists and get what's only in A, only in B, and in both. Handles Instagram & TikTok exports.
Open
DIFF
CSV diff tool
Compare two versions of the same file — get added, removed, changed and unchanged rows.
Open
JOIN
Join two CSV files
Combine two files on a shared column or combination of columns.
Open
FUZZY
Fuzzy match two CSV files
Cross-match two files to find overlaps and net-new rows, even with messy text.
Open
Clean one file
Single-file dedupe
Find and remove fuzzy duplicates inside one spreadsheet.
For developers
Build it into your product
The same engine that powers these tools, available as an API.