Stack Online Tools

Stack Online Tools helps developers, designers, marketers, and content creators handle everyday text, data, code, and web publishing tasks without switching between separate utility sites. Its browser-based tools are grouped by category and can be used without creating an account; an account is optional for features such as saving work and viewing history. Use text tools to convert case, count words, or compare text; encoding tools to work with Base64, URLs, and HTML entities; and data tools to format JSON or convert between formats such as JSON, YAML, XML, and CSV. Developers can also validate or minify code and check differences between text. For SEO and marketing tasks, the collection includes meta tag and URL slug generators, Open Graph checks, and search-result previews. Image tools handle common conversions, including PNG, JPG, and HEIC formats. Processing happens in the browser when possible; some tools may use server-side processing.

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