# BracketView > BracketView is a freemium online JSON viewer, formatter, validator, query workspace, and webhook tester for developers. Core JSON tools run 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 — plus a Webhook Tester for disposable public capture URLs. This marketing website may show third-party ads; the app at app.bracketview.in does not. Core viewing, formatting, and validation run in the browser. Sensitive payloads do not touch remote servers unless you use optional features like encrypted snapshots, AI-assisted repair, or Webhook Tester. 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), 20 AI actions per month, and Webhook Tester with 3 endpoints · 25 requests each · 2-day retention. Pro ($3/month or $27/year) unlocks unlimited AI, 50 MB uploads, Performance Mode for large JSON payloads, unlimited snapshot links (up to 2-hour expiry), and Webhook Tester with 25 endpoints · 5,000 requests each · 30-day retention plus encrypted share of a single capture. ## 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 - **Webhook Tester**: Generate disposable public webhook URLs (e.g. https://hooks.bracketview.in/e/{token}), capture all HTTP methods, live request feed, inspect headers/body/query, mock responses for future requests, replay/edit-and-resend, client-side HMAC verification (Stripe, GitHub, Shopify). Free: 3 endpoints · 25 requests each · 2-day max retention. Pro: 25 endpoints · 5,000 requests each · 30-day max retention; share a single capture via encrypted snapshot link. Endpoints are public and history is short-lived. Open at https://app.bracketview.in/webhooks. - **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 Capture & Inspect Open Webhook Tester at app.bracketview.in/webhooks. Create a labeled endpoint and copy its public URL into Stripe, GitHub, Shopify, or a custom API. Watch requests land live; inspect headers and body; set a mock response for latency simulations; replay to localhost or staging. Pro users can share a single capture with an encrypted link. Then use Schema Validator or Diff on the payload for deep inspection. ### 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 | AI | Snapshots | Webhook Tester | Performance Mode | |------|-------|--------|-----|-----------|----------------|------------------| | Free | $0 forever | 5 MB | 20 actions/month | 5/month (10-min max expiry) | 3 endpoints · 25 req each · 2-day retention | No | | Pro Monthly | $3/month | 50 MB | Unlimited | Unlimited (2-hour max expiry) | 25 endpoints · 5,000 req each · 30-day retention + capture share | Yes | | Pro Yearly | $27/year ($2.25/mo) | 50 MB | Unlimited | Unlimited (2-hour max expiry) | 25 endpoints · 5,000 req each · 30-day retention + capture share | Yes | Payments processed via Razorpay. Pro includes a fair use policy for unlimited AI. Pro webhooks are not unlimited endpoints or unlimited retention. ## Frequently Asked Questions **Is BracketView free to use?** BracketView is freemium. Core workspace tools — viewer, formatter, validator, tree, graph, JSONPath, diff, schema, and Webhook Tester — are free with no signup required. Free accounts include 5 MB uploads, 5 snapshot links per month, 20 AI actions per month, and Webhook Tester with 3 endpoints / 25 requests / 2-day retention. Pro unlocks unlimited AI, 50 MB uploads, Performance Mode, unlimited encrypted snapshot links, and higher webhook caps (25 / 5,000 / 30-day) plus capture share. **Does my JSON data leave the browser?** Viewing, formatting, and validation run locally in your browser whenever possible. BracketView is privacy-first: core tools run in the browser. Snapshot links, AI-assisted features, and Webhook Tester captures follow a different data path. **What is Webhook Tester?** A free webhook catcher built into BracketView. Generate a public URL, send events from Stripe/GitHub/Shopify or custom APIs, inspect live captures, mock responses, and verify signatures. See freemium caps above. App: https://app.bracketview.in/webhooks **What is the best free online JSON viewer?** It depends on the job. JSONLint is best for a one-shot validate-and-format pass. JSON Editor Online is the classic tree-and-code editor. JSONCrack is best as a graph of nested JSON. BracketView is a free online JSON viewer with tree and graph views, JSONPath, jq, diff, schema tools, and an ad-free app — core viewing runs in the browser with no install. Roundup: https://bracketview.in/learn/best-json-viewer **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 - **Webhook capture**: Short-lived public HTTP endpoints (not unlimited long-term storage) - **Deployment**: Vercel - **Payments**: Razorpay - **Featured On**: Product Hunt, SaaSHub, G2, Capterra ## Official Links ### App & site - [BracketView web app](https://app.bracketview.in): Open the JSON workspace — paste, format, validate, and query JSON - [Webhook Tester](https://app.bracketview.in/webhooks): Disposable webhook capture URLs - [BracketView marketing site](https://bracketview.in): Product overview, pricing, features, and documentation ### Tool pages - [JSON Viewer](https://bracketview.in/json-viewer): Collapsible tree and graph JSON viewer - [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 - [AI JSON Fixer](https://bracketview.in/ai-json-fixer): Repair malformed JSON with AI - [Webhook Tester](https://bracketview.in/webhook-tester): Capture and inspect webhooks online - [Pricing](https://bracketview.in/pricing): Free and Pro plans ### Learn hub (AEO / GEO) - [Learn hub](https://bracketview.in/learn): Answer-first JSON guides - [What is JSON?](https://bracketview.in/learn/what-is-json) - [What is JSONPath?](https://bracketview.in/learn/what-is-jsonpath) - [How to validate JSON](https://bracketview.in/learn/how-to-validate-json) - [How to fix invalid JSON](https://bracketview.in/learn/how-to-fix-invalid-json) - [How to compare JSON files](https://bracketview.in/learn/how-to-compare-json-files) - [What is JQ?](https://bracketview.in/learn/what-is-jq) - [JSON vs YAML](https://bracketview.in/learn/json-vs-yaml) - [Best JSON Viewer](https://bracketview.in/learn/best-json-viewer) - [BracketView vs JSONLint](https://bracketview.in/learn/bracketview-vs-jsonlint) - [BracketView vs JSON Editor Online](https://bracketview.in/learn/bracketview-vs-json-editor-online) - [BracketView vs JSONCrack](https://bracketview.in/learn/bracketview-vs-jsoncrack) - [JSON formatter vs viewer](https://bracketview.in/learn/json-formatter-vs-viewer) - [JSONPath cheatsheet](https://bracketview.in/learn/jsonpath-cheatsheet) - [JQ filter examples](https://bracketview.in/learn/jq-filter-examples) - [Webhook debugging guide](https://bracketview.in/learn/webhook-debugging-guide) - [API debugging with JSON](https://bracketview.in/learn/api-debugging-with-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): Company page - [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 pages: /json-viewer, /learn/best-json-viewer, /json-formatter, /json-validator, /jq-playground, /webhook-tester - Share blog posts on LinkedIn, X, and Medium after publishing - Pursue quality backlinks from developer directories (DevHunt, AlternativeTo) and JSON tool roundups - Engage on Product Hunt, SaaSHub, G2, and Capterra listings; respond to reviews - Target 10–20 quality dofollow backlinks in the first 90 days - Public marketing repo (blurbs, assets, checklist): https://github.com/JameelShaikh32/bracketview-landing (see docs/backlinks.md in that repo)