# DevToolNest

> DevToolNest is a free, privacy-focused suite of online developer utilities designed for fast data processing, syntax validation, encoding/decoding, and payload inspection. Every tool runs 100% client-side in the user's browser with zero server data uploads or logging.

DevToolNest is architected and maintained by Nirav Kakadiya (Sr. Mobile App Developer). The platform adheres strictly to zero-trust privacy models, client-side isolation, and verifiable technical standards (IETF RFCs, W3C, WHATWG, TC39). For complete documentation in a single file for large-context LLMs and RAG systems, see [llms-full.txt](https://devtoolnest-iota.vercel.app/llms-full.txt).

## Developer Utilities

- [JSON Formatter & Validator](https://devtoolnest-iota.vercel.app/tools/json-formatter): Format, beautify, validate, and minify JSON data with exact line and column syntax error detection. Supports IETF RFC 8259 and ECMA-404 specifications.
- [JWT Decoder & Inspector](https://devtoolnest-iota.vercel.app/tools/jwt-decoder): Parse and inspect JSON Web Tokens (JWT) adhering to RFC 7519, RFC 7515 (JWS), and RFC 8725 best practices. Decodes header algorithms, registered claims, custom payloads, and highlights token expiration status without exposing private secrets.
- [URL Encoder & Decoder](https://devtoolnest-iota.vercel.app/tools/url-encoder-decoder): Encode and decode URLs, URI paths, and query string parameters according to RFC 3986 and the WHATWG URL Standard. Features an interactive query parameter table editor and supports encodeURIComponent, encodeURI, and application/x-www-form-urlencoded formats.
- [Base64 Encoder & Decoder](https://devtoolnest-iota.vercel.app/tools/base64-encoder-decoder): Convert Unicode text and binary bytes to and from Base64. Supports RFC 4648 §4 (Standard) and RFC 4648 §5 (URL-Safe) formats with lossless UTF-8 byte stream conversion via Web Standard TextEncoder.
- [YAML Formatter & Validator](https://devtoolnest-iota.vercel.app/tools/yaml-formatter): Format, validate, and beautify YAML documents according to the YAML 1.2.2 specification. Provides bi-directional YAML-to-JSON conversion, tab-to-space error detection, and multi-document stream ('---') support for Kubernetes manifests and Docker Compose.
- [JSON Compare & Diff](https://devtoolnest-iota.vercel.app/tools/json-compare): Perform side-by-side semantic differences between two JSON payloads. Highlights key additions (+), deletions (-), and value modifications (~), with object key normalization (Sort Keys) to eliminate false diffs caused by serializer ordering.
- [JSON Tree Viewer](https://devtoolnest-iota.vercel.app/tools/json-tree-viewer): Visualize and navigate complex nested JSON structures in an interactive collapsible tree. Features real-time search filtering, element counters, and JSON Pointer (RFC 6901) path copying.

## Core Architecture & Security

- [About DevToolNest](https://devtoolnest-iota.vercel.app/about): Comprehensive background on our mission, client-side execution architecture, and zero-tracking privacy commitment.
- [Privacy Policy](https://devtoolnest-iota.vercel.app/privacy): Detailed documentation of our zero-data-leak client-side sandbox architecture, local storage usage, and privacy compliance.
- [Terms of Service](https://devtoolnest-iota.vercel.app/terms): Terms governing free use of DevToolNest utilities for personal, academic, and commercial production workflows.
- [Contact & Feedback](https://devtoolnest-iota.vercel.app/contact): Contact the engineering team for tool requests, feedback, or bug reports.

## Author & Engineering Leadership

- [Nirav Kakadiya - Author & Leadership Profile](https://devtoolnest-iota.vercel.app/about#author): Profile for Nirav Kakadiya (Sr. Mobile App Developer), including verified credentials (5+ Years IT Industry Experience), engineering background, and links to his [LinkedIn Profile](https://www.linkedin.com/in/nirav-kakadiya-03b992289) and [GitHub Profile](https://github.com/nirav9624131869). Direct email contact: niravkakadiya96@gmail.com.

## Verifiable Technical Standards & References

- [IETF RFC 8259](https://datatracker.ietf.org/doc/html/rfc8259): The JavaScript Object Notation (JSON) Data Interchange Format.
- [IETF RFC 7519](https://datatracker.ietf.org/doc/html/rfc7519): JSON Web Token (JWT) Standard.
- [IETF RFC 7515](https://datatracker.ietf.org/doc/html/rfc7515): JSON Web Signature (JWS) and Base64URL Encoding.
- [IETF RFC 8725](https://datatracker.ietf.org/doc/html/rfc8725): JSON Web Token Best Current Practices.
- [IETF RFC 3986](https://datatracker.ietf.org/doc/html/rfc3986): Uniform Resource Identifier (URI): Generic Syntax.
- [IETF RFC 4648](https://datatracker.ietf.org/doc/html/rfc4648): The Base16, Base32, and Base64 Data Encodings.
- [IETF RFC 6901](https://datatracker.ietf.org/doc/html/rfc6901): JavaScript Object Notation (JSON) Pointer.
- [IETF RFC 6902](https://datatracker.ietf.org/doc/html/rfc6902): JavaScript Object Notation (JSON) Patch.
- [IETF RFC 7396](https://datatracker.ietf.org/doc/html/rfc7396): JSON Merge Patch.
- [YAML 1.2.2 Specification](https://yaml.org/spec/1.2.2/): YAML Ain't Markup Language (YAML™) Language Specification.
- [WHATWG URL Standard](https://url.spec.whatwg.org/): URL Living Standard for modern web runtimes.
- [W3C CSP Level 3](https://www.w3.org/TR/CSP3/): Content Security Policy Level 3 specification.