Software Alternatives, Accelerators & Startups

JSONLint VS PureDevUtils

Compare JSONLint VS PureDevUtils and see what are their differences

JSONLint logo JSONLint

JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.

PureDevUtils logo PureDevUtils

Free browser-based developer tools for JSON, JWT, Base64, URL, UUID, and CSV โ€” format, validate, encode, decode, and convert data privately, with nothing uploaded.
  • JSONLint Landing page
    Landing page //
    2023-06-18
  • PureDevUtils Landing Page(Dark Mode)
    Landing Page(Dark Mode) //
    2026-08-23
  • PureDevUtils Tools
    Tools //
    2026-08-23
  • PureDevUtils Working Sample
    Working Sample //
    2026-08-23
  • PureDevUtils
    Image date //
    2026-08-23
  • PureDevUtils Landing Page(Light Mode)
    Landing Page(Light Mode) //
    2026-08-23
  • PureDevUtils
    Image date //
    2026-08-23
  • PureDevUtils
    Image date //
    2026-08-23

PureDevUtils is a free collection of 16 browser-based developer tools: JSON formatting, validation, minifying, and diffing; JWT decoding; Base64 and URL encoding/decoding; JSON to CSV/YAML/ TypeScript/Python/Java conversion; and UUID generation. Every tool runs entirely client-side, so nothing you paste or generate is ever uploaded to a server. No sign-up, no ads โ€” just fast, private utilities for developers.

PureDevUtils

$ Details
free
Platforms
Web
Release Date
2026 August
Startup details
Country
India
City
Lucknow
Founder(s)
Vishal Tripathi
Employees
1 - 9

JSONLint features and specs

  • User-Friendly Interface
    JSONLint offers a simple and intuitive web interface that makes it easy to validate JSON data without the need for advanced technical skills.
  • Error Highlighting
    The tool highlights exactly where the errors are in the JSON data, making it easier to identify and correct mistakes quickly.
  • Free to Use
    JSONLint is freely accessible to anyone with an internet connection, making it a cost-effective solution for validating JSON data.
  • JSON Formatter
    In addition to validating JSON, JSONLint also offers functionality to format and beautify JSON data, improving readability.
  • Quick Processing
    The tool processes JSON data quickly, providing almost instant feedback which is useful during development and debugging.

Possible disadvantages of JSONLint

  • Internet Connection Required
    JSONLint is a web-based tool, so it requires an active internet connection to function, which can be a limitation in offline environments.
  • Basic Features
    While JSONLint is excellent for simple validation and formatting, it lacks more advanced features like schema validation or integration with development environments.
  • No API
    JSONLint does not offer an API for programmatic access, limiting its use in automated workflows and larger development pipelines.
  • Ads on the Website
    The website includes advertisements, which can be distracting for users and might affect the user experience.
  • Limited Customization
    The tool does not offer much in terms of customization options for how errors are displayed or how JSON is formatted, which might not meet all user needs.

PureDevUtils features and specs

  • Client-Side Processing
    All tools process data locally in your browser; data is not uploaded.
  • Developer Utilities
    JSON, JWT, Base64, URL, UUID, CSV, and related developer tools.
  • Data Conversion
    Convert and transform data between supported formats such as JSON, CSV, and YAML.

Analysis of JSONLint

Overall verdict

  • Yes, JSONLint is a good tool for validating and formatting JSON. It is reliable, easy to use, and widely recommended by developers for ensuring the correctness and readability of JSON data.

Why this product is good

  • JSONLint is considered good because it provides a simple and effective way to validate and format JSON data, helping developers quickly identify and correct errors in their JSON structures. Its user-friendly interface and straightforward functionality make it accessible to both beginners and experienced developers.

Recommended for

  • Developers working with JSON
  • Web developers
  • API developers
  • Anyone needing to validate JSON data

Category Popularity

0-100% (relative to JSONLint and PureDevUtils)
Developer Tools
97 97%
3% 3
JSON Formatters
0 0%
100% 100
Development
100 100%
0% 0
Web Development Tools
0 0%
100% 100

Questions & Answers

As answered by people managing JSONLint and PureDevUtils.

Who are some of the biggest customers of your product?

PureDevUtils's answer:

No major customers yet; PureDevUtils is currently available as a free public developer tool.

What makes your product unique?

PureDevUtils's answer:

PureDevUtils provides a collection of browser-based developer utilities with a privacy-first approach. Tools process data locally in the browser, so users can format, validate, encode, decode, and convert data without uploading it to a server.

Why should a person choose your product over its competitors?

PureDevUtils's answer:

PureDevUtils is free, requires no sign-up, has no ads, and focuses on client-side processing. It brings common developer utilities together in one simple interface while keeping user data in the browser.

How would you describe the primary audience of your product?

PureDevUtils's answer:

PureDevUtils is designed for web developers, software engineers, students, API developers, QA engineers, and anyone who regularly works with JSON, JWT, Base64, URLs, UUIDs, CSV, YAML, and other developer data formats.

What's the story behind your product?

PureDevUtils's answer:

PureDevUtils was created to make everyday developer tasks faster and more private. Instead of relying on multiple online utilities or uploading potentially sensitive data to third-party services, PureDevUtils brings useful tools together in one browser-based platform with client-side processing.

Which are the primary technologies used for building your product?

PureDevUtils's answer:

PureDevUtils is built with TypeScript and Next.js, with JavaScript for supporting functionality. The project uses Vitest for testing and runs as a browser-based web application.

User comments

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Social recommendations and mentions

Based on our record, JSONLint seems to be more popular. It has been mentiond 138 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

JSONLint mentions (138)

  • I Finally Built a Mac App (After Years of Someday)
    I've been maintaining jsonlint.com for years. It's a simple JSON validator that I enjoy hacking on every now and then. Nothing fancy, just a useful tool that developers seem to appreciate. - Source: dev.to / 7 months ago
  • # Complete Guide to RAG Evaluations in Amazon Bedrock
    Note: It is crucial that your batchinput.jsonl file is correctly formatted. You can use online JSON formatters and validators like jsonformatter.org or jsonlint.com to verify its integrity before proceeding. - Source: dev.to / 11 months ago
  • From Readable to Lightweight: Understanding JSON Minification
    Online Tools: Websites like JSONLint or jsonformatter.org let you paste JSON and get a minified version instantly. - Source: dev.to / 12 months ago
  • How to Store Multi-Line Strings in JSON
    Or paste your JSON into JSONLint. Both tools immediately identify stray control characters. - Source: dev.to / over 1 year ago
  • Chapter 1: setup, CSS, version control and SASS
    Our old pal VS Code will probably throw up some wiggly red lines if we do it wrong, so look out for them. If you're struggling to see why it doesn't work, try an online JSON Validator and see if it pushes you in the right direction. - Source: dev.to / over 1 year ago
View more

PureDevUtils mentions (0)

We have not tracked any mentions of PureDevUtils yet. Tracking of PureDevUtils recommendations started around Aug 2026.

What are some alternatives?

When comparing JSONLint and PureDevUtils, you can also consider the following products

JSONFormatter.org - Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON

DevToys - A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.

JSON Formatter & Validator - The JSON Formatter was created to help with debugging.

CyberChef - The Cyber Swiss Army Knife

JSON Editor Online - View, edit and format JSON online

FreeFormatter - Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.