data-diff

Data-diff solution for dbt-ers with Snowflake ❄️ 🚀

Compare tables within or across databases

Complete reimplementation of Google’s diff-match-patch for Qt6. Replaces deprecated Qt4 components and updates to modern C++. Provides robust diff, patch, and pattern matching. Header-only and easy to integrate.

Tracks changes in nested Python structures (dicts, lists, tuples, and objects with __dict__).

Initial public source, qualification scripts, compatibility documentation, and reproducibility checks for FastDiff v0.2.1.

> A fast and flexible command-line tool to compare CSV files using composite keys and generate clean, structured diffs.

Ruff for data — Arrow-native data quality in Rust + Python: contracts, canonical fingerprints, keyed diffs, PII & leakage scans, and Ed25519 proof receipts

Local-first CLI for semantic data reconciliation with YAML rules and JSON reports.

Stable comparison engine for datasets, files, streams, and connector-backed sources.

Diff two tables and see what changed, and which slice of your data it's concentrated in.

Ship metrics quickly with confidence

Table Data Diff

json compare automation tool

Diff a table between prod and your PR branch, and post the result as a sticky PR comment.

A high-performance Change Data Capture (CDC) tool for comparing CSV files and detecting differences. Built with Python and optimized for speed using Polars, NumPy, and xxHash.

Python CLI and data diff tool for comparing SQL tables, SQL query results, CSV, and Excel/XLSX files

Visual data diff for dbt + BigQuery — compare production vs development data with an interactive HTML report

Diff GeoJSON datasets into a summary and map-ready change layer.

dbt's jaffle shop, ported to Reble — live branch-per-PR data diffs, plain-SQL models, side-by-side with the original dbt project

Your models are just SQL files. Branch your warehouse like you branch your code.