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Express Lint

expresslint.comBrowser DevTools & extensions

PulseGate's liveness check found it on 3 Oct 2026; it has been in the index since 25 Aug 2026. How this is checked

Express Lint is a browser-based toolkit for validating, formatting, repairing, and viewing JSON files up to 50 MB. It also provides JSON and text diff tools, syntax highlighting, error locations, and local processing for developers and technical users.

Inferred · not functionally tested

FreeWebCloud-managed
Express Lint preview
Visit expresslint.com

Overview

6 features

Purpose: Validating, repairing, formatting, and comparing JSON without sending sensitive data to a server.

Inferred · not functionally tested

Audience: developers and technical users working with JSON

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, cloud_managed

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: expresslint.com. These links do not verify the individual claims.

Express Lint is a Browser DevTools & extensions project. Inferred · not functionally tested: Validating, repairing, formatting, and comparing JSON without sending sensitive data to a server. Inferred · not functionally tested: It is built as a B2B product for developers and technical users working with JSON. Basis unknown · not verified: Express Lint is free to use. Basis unknown · not verified: It ships for the web.

Inferred · not functionally tested: Among its 6 catalogued features are JSON Validation, JSON Repair, and JSON Formatting.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • JSON Validation
  • JSON Repair
  • JSON Formatting
  • Syntax Highlighting
  • Error Locations
  • JSON Diff

Topics: Inferred · not functionally tested

Tags
json-validatorjson-linterjson-repairjson-diffbrowser-developer-tool

JSON profile · Text profile · Access guide

Built with & integrations

Framework
Next.js
Hosting
Vercel
Runs on
BrowserCloud-managed
Detected from
Next.js
x-nextjs-prerender header · /_next/static/ in the HTML · __next_f in the HTML
Vercel
x-vercel-id header · x-vercel-cache header

Trust & compliance

Public signals
HTTPSPrivacy PolicyFree tier
Legal
Privacy Policy

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed25 Aug · 21:14 UTC
    Express Lint seen via Saashub
    Source: Saashub · Open

Frequently asked questions about Express Lint

What does Express Lint do?
Inferred · not functionally tested: Validating, repairing, formatting, and comparing JSON without sending sensitive data to a server. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Express Lint?
Inferred · not functionally tested: Express Lint is a B2B product built for developers and technical users working with JSON.
Does Express Lint have a free plan?
Basis unknown · not verified: Yes — Express Lint is free to use.
What platforms does Express Lint run on?
Basis unknown · not verified: Express Lint runs on the web.
Is Express Lint still active?
PulseGate's liveness check found it on 3 Oct 2026.
What are alternatives to Express Lint?
Similar projects tracked by PulseGate include Jsolint, JSON Editor Online, and JSON Validator Online.JsolintJSON Editor OnlineJSON Validator Online

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