Developer Tools

18 maintained browser-native tools for JSON, SQL, schemas, API configuration, and production debugging.

Instant Results

Private by Design

No Installation

How These Tools Work

Every tool on ByteJSON runs directly in your browser. Paste a JSON blob, an encoded string, or a config file — the processing happens locally on your device, not on a remote server. This means no upload queues, no accounts required, and your sensitive data never leaves your machine during normal use.

The tools are organized into focused categories below. Each category groups related utilities so you can find the right tool by problem domain rather than by name. Start from the category that matches your current task, or browse all tools to discover utilities you didn't know existed.

Data ToolsJSON, SQL, and data transformation utilities

9 tools

JSON FormatterFormat and beautify JSON JSON ValidatorValidate JSON syntax JSON DiffCompare two JSON objects JSON RepairAuto-fix JSON errors JSON Schema GeneratorGenerate JSON Schema from sample data JSON to TypeScript & ZodGenerate TypeScript interfaces and Zod schemas JSON to Zod SchemaGenerate Zod validation schema from JSON YAML ValidatorValidate YAML syntax and structure .env File ValidatorCheck syntax, duplicates & missing keys

Encode & ConvertEncoding, decoding and conversion utilities

2 tools

Drizzle Schema GeneratorGenerate Drizzle ORM tables from JSON — pgTable, serial IDs, $inferSelect SQL to Drizzle SchemaConvert SQL CREATE TABLE to Drizzle ORM schema definitions

Network & APINetwork diagnostics and API tools

3 tools

Online Port ScannerCheck open ports on a host or IP google-services.json ValidatorParse & validate Firebase Android google-services.json MIME Type LookupFind MIME types

Backend ToolsServer utilities and code generators

4 tools

Dockerfile LinterCheck Dockerfile for best practices & security NGINX Config ValidatorValidate NGINX config syntax & security JSON to OpenAPIGenerate OpenAPI 3.0 specs from JSON MySQL Syntax CheckerSQL validator for MySQL, PostgreSQL, SQLite

Core Tools

100%

Browser-based

Upload Queues

Free

To Use

Frequently Asked Questions

Do these tools require an account?

No. All tools are free to use without sign-up, login, or subscription. Just open the page and start working.

Where does my data go when I use a tool?

Most tools process input entirely in your browser using client-side JavaScript. Your data does not leave your device during normal use. See each tool's page for specific processing notes.

Can I use these tools offline?

An internet connection is required to load ByteJSON pages. However, once a tool page is loaded, most processing happens locally and does not require a continuous connection.

How do I report a bug or suggest a feature?

You can open an issue or start a discussion on GitHub, or send an email to [email protected]. We review all reports and typically respond within a few days.