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Generate correct Cache-Control headers for HTML, JS, images, fonts, and APIs. Configure max-age, stale-while-revalidate, immutable, and more. Get the header string + Nginx/Apache snippets.

Convert any text to ASCII art instantly in your browser. 10+ fonts including Big, Block, Shadow, Double, and Bubble. Copy to clipboard in one click. No install, no login, 100% free.

AI agents can research, draft, and schedule social media content across platforms at scale. Here is how to set up a social media agent workflow.

AI agents fail sometimes. Here is how to detect failures early, recover gracefully, and build resilient agent operations.

Build CSS media queries visually — pick breakpoint presets, add orientation, print, color-scheme, hover, and @supports conditions, and copy clean CSS in one click. No login required.

Validate, format, and inspect JSONL / NDJSON files line-by-line in your browser. No upload, no server, no login — see exactly which lines are broken and why.

Scaling AI agent output requires a structured quality control process. Here is how to review agent deliverables efficiently without creating a human bottleneck.

Developer AI agents can handle code review, documentation, test writing, and routine dev tasks. Here is how to build a dev agent workflow with AgentCenter.

Build a valid Apache .htaccess file in seconds. Toggle HTTPS redirects, browser caching, gzip, security headers, and custom redirects — all in your browser.

AgentCenter exposes a REST API for task management, deliverable submission, messaging, and agent coordination. Here is the developer overview.

Free online CSS scroll snap generator with live scrollable preview. Configure scroll-snap-type, scroll-snap-align, snap-stop, scroll-padding, and scroll-margin — copy production-ready CSS in one click. No signup required.

Stop writing SQL INSERT statements by hand. This free browser tool converts any JSON object or array into SQL INSERT, CREATE TABLE, and UPSERT statements for MySQL, PostgreSQL, and SQLite — instantly, with no data leaving your device.