JSON Schema Validator
Validate JSON objects with lightweight schema rules and required fields.
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Tool category
Network and Config
DNS, IP/CIDR, HTTP headers, Docker, Nginx, .env, gitignore, and file type lookup.
17 tools in this category
Network and Config tools
JWT Generator
Generate HS256-style JWTs from header, payload, and secret fields.
IP / CIDR Calculator
Calculate IPv4 network, broadcast, host range, and capacity for CIDR blocks.
DNS Lookup Tool
Query A, AAAA, CNAME, MX, and TXT records through browser-side DNS-over-HTTPS.
HTTP Header Parser
Parse raw HTTP header text into JSON and highlighted fields.
WebSocket Tester
Connect to a WebSocket endpoint, send messages, and inspect live logs.
OAuth Callback Debugger
Parse OAuth callback query, hash, error details, and JWT fragments.
JWKS Viewer
Inspect JSON Web Key Set kid, algorithm, usage, size, and thumbprint fields.
HAR Viewer
Analyze browser HAR requests, statuses, domains, timings, and transfer sizes.
OpenAPI / Swagger Viewer
Parse OpenAPI JSON or YAML into operations, schemas, and security overviews.
User-Agent Generator
Generate common desktop, mobile, and crawler User-Agent strings.
Docker Compose Formatter
Tidy Compose YAML text and flag common services, image, and port fields.
Nginx Snippet Generator
Generate reverse proxy, static site, and cache snippets from host and port fields.
.env Formatter and Sorter
Tidy, sort, dedupe, and diff-friendly .env key-value files.
gitignore Generator
Generate common .gitignore templates by tech stack.
Image EXIF Viewer
Read common JPEG EXIF metadata locally in the browser.
MIME Type Lookup
Look up common MIME types by extension or file name.
Related categories
Generators and Creation
Letters, headlines, dummy copy, random strings, IDs, and QR codes.
Text Utilities
Dedupe, replace, case conversion, Chinese conversion, masking, regex extraction, and line operations.
Encoding and Data Conversion
Base64, HTML entities, Markdown/HTML, CSV/JSON, tables, and file encoding conversion.
Documents and PDF
Merge, split, convert, render, edit metadata, and watermark PDF files locally.
Network and Config FAQ
Do these tools run locally?
Most RustPoint tools process input in the browser. Tools that need network access, such as DNS or WebSocket checks, only make requests after the user starts the check.
Does RustPoint store my input?
The local tools are designed to avoid server-side storage. Account favorites store only tool IDs for signed-in users.
How should I choose a tool in this category?
Start from the task you need to finish, then compare the short descriptions and tags. The catalog search can narrow tools by name, tag, and category.