Best JSONLint Alternatives

The top-ranked JSONLint alternative is JSON Formatter & Validator (FreeFormatter) (Free). The best free option is Visual Studio Code.

JSONLint is a handy online JSON validator and formatter, but users often want offline tools, richer editing, or features like schema validation and querying. Developers seek faster or more capable JSON utilities.

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1
#1

JSON Formatter & Validator (FreeFormatter)

Free

Online tool to format, validate, and beautify JSON documents.

Web
2
#2

JSON Editor Online

Freemium

Web-based JSON editor with tree view, formatting, and query tools.

Web
3

Lightweight, extensible code editor with strong Swift and mobile tooling support.

WindowsmacOSLinux
#4

jq

Open Source

Command-line JSON processor for filtering, transforming, and querying data.

WindowsmacOSLinux
#5

JSONLint Pro / JSON Lint (CodeBeautify)

Free

Online JSON validator, formatter, and viewer with many related tools.

Web
#6

JSON Crack

Freemium

Tool that visualizes JSON data as interactive graphs and diagrams.

Web
#7

Postman

Freemium

API platform that formats, validates, and inspects JSON responses.

WindowsmacOSLinuxWeb
#8

Insomnia

Freemium

Open-source API client for REST, GraphQL, and gRPC with a clean UI.

WindowsmacOSLinux
#9

JSON Formatter (Curious Concept)

Free

Online JSON formatter and validator with error highlighting.

Web
#10

Notepad++

Open Source

Lightweight source code editor for Windows with syntax highlighting.

Windows
#11

Dadroit JSON Viewer

Freemium

Fast desktop viewer for opening and searching very large JSON files.

WindowsmacOSLinux
#12

JSONHero

Open Source

Open-source web tool for viewing and exploring JSON files clearly.

Web

JSONLint alternatives: FAQ

What is the best alternative to JSONLint?

JSON Formatter & Validator (FreeFormatter) is ranked first on this list (Free). The ranking combines our base score with readers' votes, so it can change.

What is the best free alternative to JSONLint?

The highest-ranked free or open-source options here are JSON Formatter & Validator (FreeFormatter), Visual Studio Code and jq.

Which JSONLint alternatives work on Mac?

Visual Studio Code, jq, Postman and Insomnia run on macOS.

Which JSONLint alternatives work on Linux?

Visual Studio Code, jq, Postman and Insomnia run on Linux.

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