Life & fun · alternatives · 2026

Jslon is a GUI viewer designed to handle large JSONL, TSV, and CSV files with high performance. It allows users to open and browse these common data formats efficiently without requiring command-line tools. The… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Jqview, a simple native GUI for inspecting JSON with jq▲208

   simplest possible native GUI for inspecting JSON objects with jq - fiatjaf/jqview

   2020 · github.com · its alternatives →

2. 2EC
   ExcelJSON – Convert JSON To/from CSV, TSV Easily▲50

   2017 · exceljson.com · its alternatives →

3. 3
   jnv: interactive JSON filter using jq▲373

   Interactive JSON filter using jq. Contribute to ynqa/jnv development by creating an account on GitHub.

   2024 · github.com · its alternatives →

4. 4
   Catj – A new way to display JSON files▲388

   Displays JSON files in a flat format. Contribute to soheilpro/catj development by creating an account on GitHub.

   2019 · github.com · its alternatives →

5. 5JB
   JSON Browse – Fetch, filter and manipulate your JSON inside the browser▲138

   2017 · jsonbrowse.com · its alternatives →

6. 6
   TextQuery – Query CSV, JSON, XLSX Files with SQL▲163

   Hiya HN! TextQuery is my sabbatical project that I have been working on for the past six months. It was born out of a personal pain point. Anytime I wanted to analyze raw CSV data, I had to create a schema first before I could import it for querying. And to create charts, I had to use yet another tool. I also disliked how bad charts from popular tools like Excel, Google Sheets looked like. I wanted an easier way to do this and TextQuery was my solution: an all-in-one tool to query CSV files using SQL and create beautiful visualizations as well. Currently, it's a macOS app and focused on CSV…

   2025 · textquery.app · its alternatives →

7. 7
   JSON For You – Visualize JSON in graph or table views▲211

   After two years of improvement, I think it's time to share it with you all. Here’s a quick overview: - Common features include validation, formatting, minification, and more. - Visualize JSON in a graph or table view. - Structured comparison with fallback to text comparison. - Navigate though JSON using JSON pointer. - Supports jq. Would love to hear the community's questions, thoughts and comments!

   2024 · github.com · its alternatives →

8. 8
   jql – Easier jq Alternative with a Lispy Syntax Written in Go▲217

   Easy JSON Query Processor with a Lispy syntax in Go - cube2222/jql

   2020 · github.com · its alternatives →

9. 9
   OK JSON▲113

   Format and view JSON with native Mac app

   2021 · okjson.app · its alternatives →

10. 10
    JSON-Splora, a gui for editing, visualizing, and manipulating JSON data▲54

    GUI app for editing, visualizing, and manipulating JSON data - wellsjo/JSON-Splora

    2016 · github.com · its alternatives →

11. 11
    ffjson: faster json serialization in Go▲83

    2014 · journal.paul.querna.org · its alternatives →

12. 12
    LJSON: JSON extended with pure functions▲39

    JSON extended with pure functions. Contribute to VictorTaelin/LJSON development by creating an account on GitHub.

    2015 · github.com · its alternatives →

13. 13
    A Fast, Malloc-Free C++14 Json Parser and Encoder▲98

    Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod

    2014 · github.com · its alternatives →

14. 14
    My first open-source project release – RandomJson▲56

    Provides a Kotlin/Java library to create a random json string - mangatmodi/RandomJson

    2019 · github.com · its alternatives →

15. 15CT
    CSV Table – Proper GUI for View and Edit CSV, JSON▲21

    Generated by create next app

    2024 · csvtable.com · its alternatives →

16. 16JA
    JSONScript – Asynchronous scripting language using JSON format▲49

    2016 · json-script.com · its alternatives →

17. 17
    JSONinja▲6

    Advanced JSON viewer for developers

    2025 · jsoninja.com · its alternatives →

18. 18
    StaticJSON: fast, direct and static typed parsing of JSON with C++▲18

    Fast, direct and static typed parsing of JSON with C++ - netheril96/StaticJSON

    2016 · github.com · its alternatives →

19. 19
    JSON Viewer▲8

    Bells and Whistles for JSON

    2016 · codebeautify.org · its alternatives →

20. 20
    CSV Explorer (YC F1) - Explore CSVs with Millions of Rows▲60

    Search, Aggregate, & Plot CSVs with millions of rows

    2017 · csvexplorer.com · its alternatives →

21. 21
    Jsonviewer▲9

    JSONNinja – A Next‑Gen JSON Viewer for Developers

    2025 · v2.jsonninja.tools · its alternatives →

22. 22
    Command-line JSON processing tool▲32

    Terminal JSON viewer & processor. Contribute to antonmedv/fx development by creating an account on GitHub.

    2018 · github.com · its alternatives →

23. 23
    Convert Large CSV/XLSX to JSON or XML in Browser▲41

    Hello HN, I'm excited to share a project I've been working on: A simple, fast way to process huge CSV and XLSX files directly in your browser and export them as clean JSON or XML Here's a few things that makes this converter different: - runs in the browser - all parsing and conversion is client side can handle data any size data - automatically detects delimiters, encodings, and data types as it parses - Live preview with column renaming, search/replace, and data cleanup - Export to JSON or XML — clean, structured output that can be used for API or Databases backstory: I built this…

    2025 · csvforge.com · its alternatives →

24. 24CP
    ConsoleJSON – pretty styles in the browser console▲15

    2015 · consolejson.com · 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 →