Alternatives

Products that do what SmoothCSV – The Ultimate CSV Editor does

Hey HN! I've been building CSV editors for 15 years. This is my third rewrite, and I think I finally got it right. Key features: - Excel-like operation for intuitive use - Equipped with basic to advanced tools necessary for handling CSV - Supports various formats and character encodings. Can handle CSVs with different column counts - Cross-platform (Windows/Mac, Linux coming soon) - Opens 100MB files in 1.6 seconds (12x faster than Excel) Tech stack: Tauri (Rust + React/TypeScript/TailwindCSS) Would love feedback from anyone dealing with large datasets daily! Website:…

1. 1
   Modern CSV▲111

   A CSV editor/viewer

   2019

2. 2
   HelloCSV - A free FlatFile alternative▲123

   A modern, frontend only, open source, CSV importer

   2025

3. 3FA
   Flatfile – a drop-in CSV / XLS importer for web apps▲54

   2019 · flatfile.io

4. 4
   Comma Chameleon▲82

   A desktop CSV editor for data publishers

   2016

5. 5
   CSVshare▲184

   Instantly share CSV data and make it searchable

   2017

6. 6
   UseCSV▲113

   Add delightful data import to your app in minutes

   2022

7. 7AO
   An open source, modern CSV importer tool in React▲15

   2021 · czhu12.github.io

8. 8CR
   CSV Reader – A browser extension to format CSV into a table▲5

   2020 · github.com

9. 9IB
   I built an "ilovepdf" for CSV files (and I called it ILoveCSV)▲5

   We often find ourselves waiting for Excel just to do simple tasks like merging two CSVs, checking for duplicates, or converting a PDF table to CSV. Thus, I built ilovecsv.net. It's a suite of 30+ free tools that run in your browser.

   Dec 2025 · ilovecsv.net

10. 10CN
    CSV-nix-tools – Collection of tools for processing system information▲9

    2020 · github.com

11. 11SC
    Source Code for CSVs▲6

    2024 · scroll.pub

12. 12WA
    Write a CSV to Postgres (and 20 other dev utilities)▲11

    2021 · retool.com

13. 13IB
    I built a CSV parser to try Go 1.26's new SIMD package▲8

    Hey HN, A CSV parser using Go 1.26's experimental simd/archsimd package. I wanted to see what the new SIMD API looks like in practice. CSV parsing is mostly "find these bytes in a buffer"—load 64 bytes, compare, get a bitmask of positions. The interesting part was handling chunk boundaries correctly (quotes and line endings can split across chunks). - Drop-in replacement for encoding/csv - ~20% faster for unquoted data on AVX-512 - Quoted data is slower (still optimizing) - Scalar fallback for non-AVX-512 Requires GOEXPERIMENT=simd.…

    Jan 2026 · github.com

14. 14CA
    csvdiff – a fast diff tool for comparing CSV files▲21

    2019 · github.com

15. 15DC
    Data-Cent – Interactive CSV Visualization and Analysis in Your Browser▲6

    Sep 2025 · github.com

16. 16CG
    Csvlint.go, command line tool for validating CSV files against RFC 4180▲10

    2014 · github.com

17. 17AS
    A smart app to repair syntax errors in very large CSV files▲7

    2018 · csvstudio.com

18. 18FF
    Full-featured+fast SIMD CSV lib, extensible utility & web playground▲5

    2021 · github.com

19. 19
    CSVTool.io▲4

    Free CSV tools that run entirely in your browser

    Jul 2026 · csvtool.io

20. 20
    csvdiff.app▲9

    Compare CSV files. Right in your browser

    Jul 2026 · csvdiff.app

21. 21A1
    Analyse 1M rows of CSV on device▲6

    Hello HN, Wish you a very Happy New Year. StatPecker is our baby project. A cute little infographics generation tool for anybody seeking insights. We recently dropped a new feature, to help user upload CSV upto 50mb or in other words data with ~1 million rows. We wanted to make sure user data doesn’t get leaked, so we developed a mechanism where the CSV is analysed on user’s device. We only use our AI APIs to generate SQL queries on the fly and query the DB on user’s machine, along with the final response for aggregated data. The result turns out to be quite fast. Would love you to try it out.

    Jan 2026 · app.statpecker.com

22. 22PF
    Pastebin for CSV▲12

    2014 · sharecsv.com

23. 23IB
    I built an open-source CSV importer that I wish existed▲5

    2025 · github.com

24. 24DA
    DSS, a lightweight TUI spreadsheet editor and dashboard in Go▲7

    Hi there, I tried to build a CLI tool to edit and visualize Excel/CSV files directly in the terminal, I called it "dss". I did it for fun to tweak spreadsheet formulas without leaving my terminal or opening heavy GUI apps. It is an interactive editor of sheets with charts and formula engine diretly in TUI. The formula engine is handmaded but I'd like to improve it. I copied a lot from my previous Datacmd project and from Termdash repo. Hoping to receive some feedback.

    Apr 2026 · github.com

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