# Symelo

> Web development, AI tooling, research software, and free browser tools.

Public pages are available as HTML, Markdown, plain text, or JSON. Send Accept: text/markdown, append .md to a page path, or use ?format=markdown. The homepage Markdown URL is /index.md. Language prefixes are preserved.

Page representations document tools; they do not execute them. The placeholder image and domain registration services have HTTP APIs. Other local tools run in the browser.

## Pages and tools

- [Symelo - Deep Tech Precision](https://dev.symelo.com/index.md): Founder-led web development, AI tooling, and psychology research systems.
- [Services](https://dev.symelo.com/services.md): Web platforms, APIs, automation, and research software.
- [Browser tools](https://dev.symelo.com/tools.md): Free image and development tools that run in the browser.
- [Projects](https://dev.symelo.com/projects.md): Selected technical systems and experiments.
- [Research](https://dev.symelo.com/research.md): AI, psychology, and product behavior notes.
- [About Symelo](https://dev.symelo.com/about.md): Founder-led deep tech precision.
- [Contact us](https://dev.symelo.com/contact.md): Send a focused inquiry to Symelo.
- [Terms & Privacy](https://dev.symelo.com/terms.md): Legal and privacy information.
- [Password & Random Generator](https://dev.symelo.com/tools/password-generator.md): Generate passwords, passphrases, names, and custom patterns with adjustable character rules and batch export.
- [JSON Viewer](https://dev.symelo.com/tools/json-viewer.md): Validate, format, search, and inspect JSON trees in the browser.
- [Text & Code Diff Checker](https://dev.symelo.com/tools/diff-checker.md): Compare text or code with whitespace controls and diff export.
- [HTML Cleaner](https://dev.symelo.com/tools/html-cleaner.md): Clean HTML in the browser by removing unwanted tags, attributes, styles, and comments.
- [QR Code Generator](https://dev.symelo.com/tools/qr-code.md): Create branded QR codes with custom colors, center images, and PNG or SVG export.
- [Placeholder Image Generator](https://dev.symelo.com/tools/placeholder-images.md): Generate custom placeholder images with seeded backgrounds and SVG, PNG, or JPG output.
- [Domain Registration Checker](https://dev.symelo.com/tools/domain-checker.md): Check one domain or a list for registration records and metadata.

## Bulgarian routes

- [Symelo - технологична прецизност](https://dev.symelo.com/bg.md): Уеб разработка, AI инструменти и системи за психологически изследвания.
- [Услуги](https://dev.symelo.com/bg/services.md): Уеб платформи, API, автоматизация и изследователски софтуер.
- [Инструменти в браузъра](https://dev.symelo.com/bg/tools.md): Безплатни инструменти за изображения и разработка, които работят в браузъра.
- [Проекти](https://dev.symelo.com/bg/projects.md): Избрани технически системи и експерименти.
- [Изследвания](https://dev.symelo.com/bg/research.md): Бележки за AI, психология и поведение в продуктите.
- [За Symelo](https://dev.symelo.com/bg/about.md): Технологична прецизност, водена от основателя.
- [Контакт](https://dev.symelo.com/bg/contact.md): Изпратете конкретно запитване към Symelo.
- [Условия и поверителност](https://dev.symelo.com/bg/terms.md): Правна информация и поверителност.
- [Password & Random Generator](https://dev.symelo.com/bg/tools/password-generator.md): Generate passwords, passphrases, names, and custom patterns with adjustable character rules and batch export.
- [JSON Viewer](https://dev.symelo.com/bg/tools/json-viewer.md): Validate, format, search, and inspect JSON trees in the browser.
- [Text & Code Diff Checker](https://dev.symelo.com/bg/tools/diff-checker.md): Compare text or code with whitespace controls and diff export.
- [HTML Cleaner](https://dev.symelo.com/bg/tools/html-cleaner.md): Clean HTML in the browser by removing unwanted tags, attributes, styles, and comments.
- [QR Code Generator](https://dev.symelo.com/bg/tools/qr-code.md): Create branded QR codes with custom colors, center images, and PNG or SVG export.
- [Placeholder Image Generator](https://dev.symelo.com/bg/tools/placeholder-images.md): Generate custom placeholder images with seeded backgrounds and SVG, PNG, or JPG output.
- [Domain Registration Checker](https://dev.symelo.com/bg/tools/domain-checker.md): Check one domain or a list for registration records and metadata.

## APIs

- [All public APIs](https://dev.symelo.com/api/openapi.json): Combined OpenAPI contract.
- [Placeholder image API](https://dev.symelo.com/docs/placeholder-images-api.md): Public image URLs and embedding instructions.
- [Placeholder OpenAPI](https://dev.symelo.com/api/placeholder/openapi.json): Image formats, parameters, and responses.
- [Domain registration API](https://dev.symelo.com/docs/domain-checker-api.md): Authentication, requests, result semantics, and limits.
- [Domain OpenAPI](https://dev.symelo.com/api/v1/domains/openapi.json): Machine-readable API contract.

## Discovery

- [Full page and tool guides](https://dev.symelo.com/llms-full.txt)
- [Sitemap](https://dev.symelo.com/sitemap.xml)
- [Representation guide](https://dev.symelo.com/docs/agents.md)