Dev tools · alternatives · 2026

24 alternatives to LocalJSON

100% client-side, privacy-first B2B data mapper & cleaner

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1EC
   ExcelJSON – Convert JSON To/from CSV, TSV Easily▲50

   2017 · exceljson.com · its alternatives →

2. 2
   JSONBason▲15

   I've been at it again, just sharing my simple JSON data inspection tool, love webdev and single page apps, this one took 4 days and was a lot of fun. The code is not obfuscated so you can inspect it and see how it works (very simple, server side is even more simple) Pretty much just do a POST of your JSON data from within your code and it will convert it into a basic table for instant search and sort. Made with love for the fun of it, no ads, no paid anything, it's totally free. Please only send in sanitized/test data only, this is meant to help make webdev a bit easier and more fun.…

   2025 · jsonbason.com · its alternatives →

3. 3
   ClearJSON▲2

   A JSON viewer you can trust. 100% local, zero tracking.

   Jul 2026 · its alternatives →

4. 4
   JSON Editor 1.0▲78

   Effortless JSON Editing, Anywhere!

   2023 · chromewebstore.google.com · its alternatives →

5. 5
   JSON Playground Tools▲5

   Modern Developer Toolkit

   Jan 2026 · jsonplayground.online · its alternatives →

6. 6
   LocalConvert Pro▲5

   Instant CSV ↔ JSON conversion. Drag, drop, done.

   Dec 2025 · tigidev.gumroad.com · its alternatives →

7. 7
   JsonExport▲5

   Convert JSON files to Excel instantly. 100% Client-side.

   Jan 2026 · jsonexport.com · its alternatives →

8. 8
   Local Scrape▲1

   Visual web scraper to CSV & JSON. 100% local & private

   Aug 2026 · chromewebstore.google.com · its alternatives →

9. 9
   JSON-to-JSON mapping done easily▲14

   2019 · github.com · its alternatives →

10. 10
    JSONKit▲4

    47 free JSON tools — all in your browser, zero uploads

    Jun 2026 · jsonkit.in · its alternatives →

11. 11
    A simple API to store and retrieve JSON objects▲18

    2015 · openbucket.io · its alternatives →

12. 12
    PJSON.live▲15

    Format, validate & convert json to typescript instantly

    Nov 2025 · pjson.live · its alternatives →

13. 13
    JSON2TS▲2

    Secure, client-side JSON to TypeScript converter.

    Jan 2026 · json2ts.js.org · its alternatives →

14. 14
    Free JSON Formatter ▲1

    Parse and fix large JSON files locally

    Mar 2026 · jsonformatter.cc · its alternatives →

15. 15
    LocalOnly

    Developer tools that never touch a server

    Jul 2026 · localonly.dev · its alternatives →

16. 16
    JSONFORGE▲2

    JSONForge is a privacy-first, local-first toolkit for devs.

    Jul 2026 · jsonforgedev-com.lovable.app · its alternatives →

17. 17
    SafeJSON — Privacy▲2

    A JSON formatter that never sees your data

    Jun 2026 · safejson.dev · its alternatives →

18. 18
    exceltojson▲7

    JSON Excel Tool | Convert Excel, JSON, CSV & More

    2025 · its alternatives →

19. 19
    TryDevSnip▲4

    JSON, JWT & cron tools — pastes stay local

    Aug 2026 · trydevsnip.com · its alternatives →

20. 20
    JSON Swiss▲13

    Free Swiss Army Knife for JSON Data

    2025 · its alternatives →

21. 21
    SJSON – a fast and simple way to set a value in JSON▲11

    Set JSON values very quickly in Go. Contribute to tidwall/sjson development by creating an account on GitHub.

    2016 · github.com · its alternatives →

22. 22
    FreeJSONtoCSV▲2

    Convert, validate, format & minify JSON in your browser

    Aug 2026 · freejsontocsv.com · its alternatives →

23. 23
    Localeasy.io▲13

    Free easy localization management

    2025 · its alternatives →

24. 24
    Json Clear Values▲9

    Sanitize, Empty, Clean json online

    2025 · its alternatives →

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 →