Dev tools · alternatives · 2026
24 alternatives to Data Diff – compare tables of any size across databases
Gleb, Alex, Erez and Simon here – we are building an open-source tool for comparing data within and across databases at any scale. The repo is at https://github.com/datafold/data-diff, and our home page is https://datafold.com/. As a company, Datafold builds tools for data engineers to automate the most tedious and error-prone tasks falling through the cracks of the modern data stack, such as data testing and lineage. We launched two years ago with a tool for regression-testing changes to ETL code…
Data Diff is an open-source tool that compares tables of any size within and across databases. Built by Datafold, it helps data engineers identify differences in data when testing ETL changes or migrations. The tool… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Data Diff – compare tables of any size across databases launched in 2022; newer entries below may have overtaken it.
- 1

- 2DIDiff.io▲194
2015 · diff.io · its alternatives →
- 3
data-diff▲10Efficiently diff data in or across relational databases
2022 · github.com · its alternatives →
- 4

I created a web page to compare different analytical databases (both self-managed and services, open-source and proprietary) on a realistic dataset. It contains 20+ databases, each with installation and data loading scripts. And they can be compared to each other on a set of 43 queries, by data load time or by storage size. There are switches to select different types of databases for comparison - for example, only MySQL compatible or PostgreSQL compatible. If you play with the switches, many interesting details will be uncovered. Full description:…
2022 · benchmark.clickhouse.com · its alternatives →
- 5

DGate is fast and easy-to-use database client and SQL editor for MySQL, PostgreSQL, SQL Server, MongoDB and more. For desktop and web, it's open-source.
2021 · dbgate.org · its alternatives →
- 6
Datafold▲22Quality assurance & monitoring for analytical data
2020 · datafold.com · its alternatives →
- 7

A tool for visualizing differences between two pdf files. - serhack/pdf-diff
2022 · github.com · its alternatives →
- 8

Hey HN! We’ve built Pretzel, an open-source data exploration and visualization tool that runs fully in the browser and can handle large files (200 MB CSV on my 8gb MacBook air is snappy). It’s also reactive - so if, for example, you change a filter, all the data transform blocks after it re-evaluate automatically. You can try it here: https://pretzelai.github.io/ (static hosted webpage) or see a demo video here: https://www.youtube.com/watch?v=73wNEun_L7w You can play with the demo CSV that’s pre-loaded (GitHub data of text-editor adjacent projects) or upload…
2024 · github.com · its alternatives →
- 9

A fast diff tool for comparing csv files. Contribute to aswinkarthik/csvdiff development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 10

- 11

Hey HN! We are Jonathan & Guy, and we are happy to share a project we’ve been working on. ChartDB is a tool to help developers and data analysts quickly visualize database schemas by generating ER diagrams with just one query. A unique feature of our product is AI-Powered export for easy migration. You can give it a try at https://chartdb.io and find the source code on GitHub. Next steps ---> More AI. We’d love feedback :)
2024 · github.com · its alternatives →
- 12AL
Hi HN! I am Maria, solo founder of DataQA (https://dataqa.ai/), a tool to search and label documents for various NLP tasks (e.g. entity extraction, entity linking, etc). I have worked as a data scientist and ML engineer for the better part of a decade, and over that time have specialised mainly in applications involving natural language processing (NLP). One of the key questions I have always had at the back of my mind is whether my time was well spent. Whenever I spent more time on feature engineering or trying different models, I always wondered whether I would get better…
2021 · its alternatives →
- 13AN
2015 · diffd.com · its alternatives →
- 14ST
https://github.com/denvaar/pgdiff I cobbled together various programs into a bash script to compare how data changes between two points in time. My idea was basically to have a `git diff` but for data inside postgres. I wanted a util like this to help get to know a new code base: Interact with an app and watch how the data changes. You run the script with a given key (anything) before interacting with an app, then run it again with the same key to see the data diff. I'm not much of a bash scripter, as you can probably see from the script, but it was a fun and useful tool…
2021 · its alternatives →
- 15
Diffchecker 2.0▲153Check the differences between two text files, images or PDFs
2020 · diffchecker.com · its alternatives →
- 16

All-pair set similarity search on millions of sets in Python and on a laptop - GitHub - ekzhu/SetSimilaritySearch: All-pair set similarity search on millions of sets in Python and on a laptop
2018 · github.com · its alternatives →
- 17

Two weeks ago I was on my babymoon in Corfu, Greece. While in transit, I was overseeing a GSoC intern submit an important feature to my array database library, Xarray-SQL. He added `to_dataset()`, which completed the roundtrip between thinking of array data in a tabular model simultaneously as gridded rasters (the premise of the project is that every Nd array can be mapped to 2d, where orthogonal dims of the Nd array are just primary keys of a tabular representation). We discussed in chat, now that this feature existed, what demos could we make that would prove this data model works? With…
Jul 2026 · github.com · its alternatives →
- 18

A grid library for instant big data processing
2022 · datatable.dev · its alternatives →
- 19

Hi HN, We're Anna, Adrian, Marcin and Matt, developers of dlt. dlt is an open source library to automatically create datasets out of messy, unstructured data sources. You can use the library to move data from about anywhere into most of well known SQL and vector stores, data lakes, storage buckets, or local engines like DuckDB. It automates many cumbersome data engineering tasks and can by handled by anyone who knows Python. Here’s our Github: https://github.com/dlt-hub/dlt Here’s our Colab demo:…
2023 · colab.research.google.com · its alternatives →
- 20

This brand new secure diffchecker. It's supports text/code diff upto 25k lines with character level diff all in browser. Supports one of the best inhouse diff merge feature. https://diffchecker.dev/ Now, add list diff - to compare two lists and show unique, common and diff between two lists. https://diffchecker.dev/list/ Add json diff, supports semantic json difference. https://diffchecker.dev/json/ With consistent, clean, minimal UI elements. Would you switch from other websites. Please checkout and provide feedback.
Nov 2025 · diffchecker.dev · its alternatives →
- 21

What's in your data? Extract schema, statistics and entities from datasets - capitalone/DataProfiler
2021 · github.com · its alternatives →
- 22

- 23

- 24

I built CSV GB+ by Data.olllo, a local data tool that lets you open, clean, and export gigabyte-sized CSVs (even billions of rows) without writing code. Most spreadsheet apps choke on big files. Coding in pandas or Polars works—but not everyone wants to write scripts just to filter or merge CSVs. CSV GB+ gives you a fast, point-and-click interface built on dual backends (memory-optimized or disk-backed) so you can process huge datasets offline. Key Features: Handles massive CSVs with ease — merge, split, dedup, filter, batch export Smart engine switch: disk-based "V Core" or RAM-based "P…
2025 · apps.microsoft.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →