Developers spend a surprising amount of time on repetitive formatting, validation, and config generation tasks that could be automated. Our browser-based developer tools eliminate that friction: validate and beautify JSON, generate Kubernetes YAML manifests and NGINX configs visually, decode JWTs, build cron schedules, format SQL queries, test regex patterns, extract sitemap URLs, and much more — with no local setup and no data leaving your browser.

Why Use Our Developer?

No Setup Required

Every tool runs entirely in the browser — no Docker containers, no npm installs, no Python environments. Open and use in under 5 seconds.

Sensitive Data Stays Local

JWT payloads, .env files, SQL schemas, and configuration files never leave your machine — all processing is client-side.

Copy-Paste Ready Output

Every tool formats output for direct use — validated JSON with proper indentation, YAML with correct syntax, SQL with consistent style.

Bi-Directional Converters

Convert between JSON ↔ XML, JSON ↔ YAML, JSON ↔ CSV, HTML ↔ Markdown, and more — in both directions from a single tool.

Common Use Cases

1Validate and pretty-print a malformed JSON API response to identify the syntax error quickly.
2Generate a Kubernetes Deployment + Service manifest visually without memorising YAML structure.
3Decode a JWT token to inspect its header, payload, and expiry during API debugging.
4Generate a robots.txt file with custom rules for AI crawlers (GPTBot, ClaudeBot, Googlebot) before deploying a new site.
5Create an .htaccess redirect rules file for migrating an old WordPress site to a new URL structure.
6Build a cron expression for a daily 3 AM job and verify its next 5 execution times before deploying.

Pro Tips

Tip 1: Always validate your JSON with a linter (like our JSON Validator) before committing it to config files — a single missing comma breaks entire build pipelines.

Tip 2: When generating Kubernetes manifests, start with resource limits set (CPU/memory requests and limits) — pods without limits can starve the cluster in production.

Tip 3: Use our JWT decoder to verify token expiry (`exp` claim) during local development before debugging 401 errors — an expired token is the most common cause.

Tip 4: When building NGINX configs, always test your regex redirect rules in the Regex Tester first — NGINX uses PCRE syntax with slight differences from JavaScript regex.

Frequently Asked Questions

Are my JWT tokens, .env files, or SQL queries sent to your servers?

No. All developer tools process data entirely in your browser using JavaScript. No input data — including sensitive values like JWT secrets, environment variables, or database credentials — is ever transmitted to our servers.

What JSON schema standards does the JSON Validator support?

Our JSON Validator checks for valid JSON syntax (RFC 8259) and provides detailed error messages with line/column numbers. It also supports JSON5 comments for review purposes. Full JSON Schema (Draft 7/2020-12) validation is on our roadmap.

Can I generate Kubernetes YAML for production use?

Our Kubernetes YAML generator produces syntactically correct manifests for Deployment, Service, ConfigMap, and Ingress resources. Always review generated YAML for production-specific values (replica counts, resource limits, ingress hostnames) before applying to a production cluster.

What is the difference between the SVG to Component converter's React and Vue modes?

In React mode, the converter transforms SVG attribute names to camelCase JSX equivalents (e.g. stroke-width → strokeWidth, class → className) and wraps the output in a functional component with TypeScript prop types. In Vue mode, it outputs a Single File Component (SFC) with the SVG in the template block and optional TypeScript props.