# BracketView > BracketView is a freemium online JSON viewer, formatter, validator, and query workspace for developers. Core tools run 100% client-side in the browser — no install required. Built by Jameel Shaikh. Marketing site: https://bracketview.in | App: https://app.bracketview.in ## Product Overview BracketView is a privacy-first JSON workspace that runs in the browser. Unlike legacy JSON utilities cluttered with advertisements inside the editor, BracketView offers a full-screen, ad-free workspace to view, format, validate, query, diff, and share JSON data. This marketing website may show third-party ads; the app at app.bracketview.in does not. Core viewing, formatting, and validation run 100% client-side — sensitive API payloads and configuration files do not touch remote servers unless you explicitly use optional features like encrypted snapshots or AI-assisted repair. BracketView is freemium: core JSON tools are free with no signup required. Free accounts include 5 MB uploads, 5 encrypted snapshot links per month (up to 10-minute expiry), and 20 AI actions per month. Pro ($3/month or $27/year) unlocks unlimited AI, 50 MB uploads, Performance Mode for large JSON payloads, unlimited snapshot links, and up to 2-hour snapshot expiry. ## Feature Reference ### View & Navigate - **Tree View**: Collapsible hierarchical view of nested JSON objects and arrays. Search keys, collapse noisy branches, inspect types. - **Graph View (JSON Galaxy)**: Dynamic node network visualization mapping relationships between nested data instead of a flat list. - **Syntax-Highlighted Editor**: Large distraction-free text workspace with colour-coded JSON and line references. - **Stats View**: Node count, maximum depth, and structural analysis at a glance. - **Performance Mode (Pro)**: Optimizes parsing and rendering for large JSON payloads (up to 50 MB). Keeps tree, graph, and editor views responsive. Disabled on Free accounts. ### Format & Validate - **JSON Formatter**: One-click beautify with readable indentation. Also minifies JSON for production payloads. - **Real-Time Validator**: Highlights bracket mismatches, trailing commas, unquoted keys, and invalid escape sequences as you type. - **Schema Validator**: Validates JSON against JSON Schema or OpenAPI definitions with per-field error messages. - **Schema Generator**: Creates JSON Schema drafts from example objects. ### Query & Filter - **JSONPath**: Query language for JSON (e.g. $.store.book[*].author). Live results as you type. - **JQ Filter Playground**: Full jq engine via WebAssembly in the browser. No command-line install required. - **AI Query Assistant**: Converts plain English descriptions into valid jq expressions. ### AI-Powered Tools - **AI JSON Fixer**: Repairs broken JSON syntax — missing commas, unquoted keys, trailing commas — with one click. - **AI Mock Data Generator**: Creates realistic test data rows from JSON Schema definitions. - **AI Prompt Enhancer**: Refines LLM prompts directly inside the workspace. ### Schema & Types - **Type Generator**: Exports TypeScript interfaces, Python dataclasses, Go structs, Rust types, and 7+ other languages from JSON examples. - **Schema Library**: Common JSON Schema patterns for quick validation setup. ### Compare & Export - **JSON Diff**: Side-by-side comparison highlighting added, removed, and changed keys. - **Export**: Copy formatted output, export types, export schemas. ### Sharing & Collaboration - **Encrypted Snapshot Links**: Shareable URLs with AES-256-GCM encryption and optional expiry. Free: 5 links per month (up to 10-minute expiry). Pro: unlimited links (up to 2-hour expiry). - **Nearby Share (WebRTC)**: Transfer JSON between two browsers using a 6-character code or QR scan. No server storage. - **Annotations**: Attach notes to specific JSON keys and values for async debugging. ### Developer Utilities - **Encoder/Decoder**: Base64 and other encoding utilities. - **Dark Mode**: System-aware dark mode across all tools with no white flash on load. ## Use Case Walkthroughs ### API Debugging Paste a REST API response into BracketView. Use Tree View to navigate nested fields. Run a JSONPath expression like $.data.items[*].id to extract specific values. If the response is malformed, the validator highlights errors instantly; use AI JSON Fixer for one-click repair. ### Webhook Payload Review Validate incoming webhook JSON against a JSON Schema. Use Diff to compare payloads across deployments and spot schema drift. Create an encrypted snapshot link to share with your team without exposing raw data in chat. ### Config Management Format hand-edited environment configs and deployment manifests. Validate syntax before committing. Minify for production or beautify for code review. ### Log Cleanup Repair broken JSON extracted from log files, third-party exports, or corrupted integrations. Format for readability, then query with jq to filter relevant entries. ### API Version Diffing Paste two API response versions into JSON Diff. Review added, removed, and changed fields before a release. Pair with Type Generator to update client-side interfaces. ### Schema Documentation Generate a JSON Schema from an example API response. Validate future responses against it. Export TypeScript interfaces for frontend integration. ## Pricing | Plan | Price | Upload Limit | AI | Snapshots | Performance Mode | |------|-------|-------------|-----|-----------|------------------| | Free | $0 forever | 5 MB | 20 actions/month | 5/month (10-min max expiry) | No | | Pro Monthly | $3/month | 50 MB | Unlimited | Unlimited (2-hour max expiry) | Yes | | Pro Yearly | $27/year ($2.25/mo) | 50 MB | Unlimited | Unlimited (2-hour max expiry) | Yes | Payments processed via Razorpay. Pro includes a fair use policy for unlimited AI. ## Frequently Asked Questions **Is BracketView free to use?** BracketView is freemium. Core workspace tools — viewer, formatter, validator, tree, graph, JSONPath, diff, and schema — are free with no signup required. Free accounts include 5 MB uploads, 5 snapshot links per month, and 20 AI actions per month. Pro unlocks unlimited AI, 50 MB uploads, Performance Mode for large JSON, and unlimited encrypted snapshot links. **Does my JSON data leave the browser?** Viewing, formatting, and validation run locally in your browser whenever possible. BracketView is privacy-first: core tools are 100% client-side. Snapshot links and AI-assisted features follow a different data path. **What is the best free online JSON viewer?** BracketView is a free online JSON viewer with tree view, graph view, JSONPath, JQ filters, JSON diff, schema validation, type generation in TypeScript/Python/Go/Rust, and AI-powered repair — all in the browser with no install. **How do I validate JSON online?** Paste JSON into BracketView at app.bracketview.in. The real-time validator highlights bracket mismatches, trailing commas, and unquoted keys as you type. **How do I format JSON online?** Open BracketView, paste raw JSON, and click Format. The formatter beautifies JSON with readable indentation in one click. **Can I query JSON without writing code?** Yes. BracketView supports JSONPath and a JQ filter playground. The AI Query Assistant converts plain English to jq expressions. ## Technical Architecture - **Frontend**: Next.js, React, Tailwind CSS - **Client-Side Processing**: Core JSON operations run in the browser - **WebAssembly**: jq engine runs via Wasm for near-native performance - **Deployment**: Vercel - **Payments**: Razorpay - **Featured On**: Product Hunt, SaaSHub ## Official Links ### App & site - [BracketView web app](https://app.bracketview.in): Open the JSON workspace — paste, format, validate, and query JSON - [BracketView marketing site](https://bracketview.in): Product overview, pricing, features, and documentation ### Tool pages - [JSON Formatter](https://bracketview.in/json-formatter): Beautify and minify JSON online - [JSON Validator](https://bracketview.in/json-validator): Real-time syntax validation with inline errors - [JSON Diff](https://bracketview.in/json-diff): Side-by-side comparison of two JSON documents - [JSONPath Query](https://bracketview.in/jsonpath-query): Query JSON with JSONPath expressions - [JQ Playground](https://bracketview.in/jq-playground): Full jq filter engine in the browser via WebAssembly - [JSON Schema Validator](https://bracketview.in/json-schema-validator): Validate JSON against JSON Schema - [JSON Type Generator](https://bracketview.in/json-type-generator): Export TypeScript, Python, Go, Rust, and more from JSON ### Documentation - [Features](https://bracketview.in/features): Full feature list and capabilities - [Glossary](https://bracketview.in/glossary): JSON, JSONPath, jq, and schema terminology - [Blog](https://bracketview.in/blog): Articles on JSON workflows and BracketView updates - [About](https://bracketview.in/about): Who built BracketView and why ### Legal & contact - [Contact](https://bracketview.in/contact): Get in touch with the BracketView team - [Privacy Policy](https://bracketview.in/privacy): Data handling and client-side processing policy - [Terms of Service](https://bracketview.in/terms): Usage terms ### Social - [LinkedIn](https://www.linkedin.com/company/bracketview): Company updates - [X (Twitter)](https://x.com/bracket_view): Product news and tips - [Facebook](https://www.facebook.com/bracketview): Community and updates - [Instagram](https://www.instagram.com/bracketview): Social updates - [YouTube](https://www.youtube.com/@bracketview): Video content - [Author on Medium](https://medium.com/@dev-jameel): Blog posts by Jameel Shaikh ### Off-page SEO (manual actions) - Submit sitemap (https://bracketview.in/sitemap.xml) to Google Search Console and Bing Webmaster - Request indexing for key tool pages: /json-formatter, /json-validator, /jq-playground - Share blog posts on LinkedIn, X, Facebook, and Medium after publishing - Pursue quality backlinks from developer directories (DevHunt, AlternativeTo) and JSON tool roundups - Engage on Product Hunt and SaaSHub listings; respond to reviews - Target 10–20 quality dofollow backlinks in the first 90 days