Premium
Engines.
Hand-picked tools optimized for production-grade speed and reliability.
Asset & UI Extractor
The ultimate site-to-code utility. Extract SVGs, brand colors, and fonts from any URL for free.
{ "id": 2, "name": "User_84", "status": "pending" }
Synthetic Data Factory
Generate diverse, high-quality synthetic training data (JSONL & CSV) for fine-tuning LLMs and AI agents.
Resume Studio
Build an ATS-friendly, professional resume with a live split-pane editor and instant PDF export.
Newsletter Generator
Create professional, responsive email templates with an intuitive editor and AI assistance.
Vulnerability Scanner
Scan your website for common security vulnerabilities and get instant fixes.
Science & Engineering
Marketing & SEO
Keyword Research Tool
Discover long-tail keywords and suggestions for SEO and content marketing.
AI SEO Audit Tool
Get AI-powered analysis of your on-page SEO, with recommendations to improve your ranking.
UTM Link Builder
Easily create campaign URLs with UTM parameters for marketing analytics.
Schema Generator
Generate JSON-LD schema for FAQs, organizations, and breadcrumbs to improve SEO.
Design & Media
Image Toolkit
Compress, convert, and remove backgrounds from images in a single, powerful interface.
Video Background Studio
Record video with a virtual background. Remove, replace, or blur your background in real-time.
Video Collage Maker
Combine multiple videos into a dynamic grid collage and export as WebM or MP4.
Business Card Generator
Design and download a professional business card with a simple, live-preview editor.
QR Code Generator
Instantly create styled QR codes for your URLs and text, with color and transparency options.
CSS Gradient Generator
Visually create and customize beautiful linear and radial CSS gradients.
Color Palette Generator
Extract beautiful color schemes by uploading an image.
Favicon Generator
Generate all necessary favicon sizes and files from a single source image.
Code & DevOps
SVG Shape Generator
Create unique, organic SVG blob shapes with configurable properties.
JSON Formatter
Format, validate, and beautify your JSON data with a clean interface.
CSS Animation Builder
A visual tool to create and export CSS keyframe animations.
Scroll Animation Generator
Visually generate scroll-triggered animations for React using Framer Motion.
Font Pairing Previewer
Select and preview Google Font pairings for your projects in real-time.
API Response Mocker
Generate mock data from a JSON schema and get a temporary API endpoint.
Cron Job Generator
A user-friendly way to build and validate cron job expressions.
.env Validator
Compare .env and .env.example files to find missing or extra variables.
Docker Command Helper
Interactively build `docker run` and `docker-compose` commands.
Git Branch Name Generator
Enforce consistent branch naming conventions for your team.
Game Development
Game Design Doc Generator
Structure your game ideas into a professional GDD and export it as Markdown.
Sprite Sheet Generator
Pack animation frames into a single sprite sheet with a JSON data file.
Retro SFX Generator
Generate 8-bit style sound effects (coins, jumps, explosions) and export as WAV.
2D Procedural Level Generator
Generate infinite 2D side-scroller maps with platforms and traps. Export tilemaps directly to JSON for Godot or Unity.
RPG Economy / XP Balancer
Visualize and balance level-up curves, gold drops, and stat progression models.
Why Jaconir?
Built for speed, privacy, and absolute simplicity.
100% Free Forever
No sign-ups, no watermarks, no feature limits. Every tool is completely free for any purpose.
Privacy Architecture
All tools run client-side. Your data is processed in your browser and never reaches our servers.
Production Grade
We focus on high-fidelity, intuitive interfaces that solve real developer problems without friction.
Featured Guides
SEO-focused walkthroughs connected to our creator tools.