Every tool, explained hands-on

CodePrettify developer guides

Each guide walks one tool from first open to a finished result, with real screenshots, honest limits, and a step-by-step tutorial. The one-page manual remains the complete reference for everything at once.

Work with JSON

Inspect, verify, and clean JSON

JSON Formatter & Viewer

Format and beautify raw responses, navigate nested data, query JSONPath, and export — locally in the tab.

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JSON Compare & Diff

Compare JSON semantically or line by line — ignore key order and formatting noise, match array items by id.

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JSON Schema Validator

Validate the open document against a pasted schema, with an exact path and source line for every violation.

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JSON Repair & Transform

Fix invalid JSON with a visible change report, then filter, sort, group, and reshape the result.

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From JSON to code

Generate typed models from real samples

JSON to Code Generator

Eleven targets from one sample: TypeScript, Zod, Pydantic, C#, Java, Kotlin, Go, Rust, Swift, Dart, JSON Schema.

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JSON to TypeScript

Nested interfaces and type aliases with honest optional and nullable inference from your own samples.

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JSON to Pydantic

Pydantic models with snake_case fields and exact source-key aliases, inferred locally.

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JSON to C# Classes

Records with System.Text.Json annotations and namespace support, generated from pasted JSON.

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More formats

Markdown, YAML, and XML without surprises

Markdown Viewer

Open local or raw .md files as readable documents with the exact source one click away.

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YAML Formatter & Validator

Validate and read YAML without re-dumping the file — comments and anchors stay intact.

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XML Formatter & Viewer

Strict validation with folding and safe links — formatting that refuses rewrites that could change your data.

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Everyday utilities

Test, request, and convert

Regex Playground

A regex tester for the open document: live matches, capture groups, replace preview, and saved tests.

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HTTP Client

Build REST requests, import cURL, and inspect body, headers, cookies, and timing — no proxy servers.

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Unix Timestamp Converter

Turn epoch seconds or milliseconds into UTC ISO 8601 and local time with explicit timezone handling.

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Install once, use every guide

All fourteen tools ship in the same free extension and Windows app, and everything runs on your device.

Install for ChromeRead the complete manual