Blok

Spec sheet

Product

Blok is an extensible, block-based rich text editor for adding Notion-like editing to an app.Read 9 Oct 2026 · blokeditor.com

Audience

Blok is presented as a developer tool for adding a customizable block editor to modern applications.Read 9 Oct 2026 · blokeditor.com

Deployment

The documentation describes client-side embeds that match URLs against a built-in registry and resolve them into provider-sanctioned iframe URLs.Read 9 Oct 2026 · blokeditor.com

Integrations

The embed block supports provider URLs from YouTube, Vimeo, Figma, CodePen, and more than 100 services.Read 9 Oct 2026 · blokeditor.com

Security

The documentation describes an HTML sanitizer intended to prevent cross-site scripting attacks.Read 9 Oct 2026 · blokeditor.com

Support

The homepage invites teams to contact the maker through Telegram or email for setup and customization help.Read 9 Oct 2026 · blokeditor.com

License

The homepage states Blok is licensed under Apache 2.0.Read 9 Oct 2026 · blokeditor.com

Blocks

The homepage lists built-in tables, lists, columns, callouts, code, media, embeds, and toggles, and says custom blocks can be added.Read 9 Oct 2026 · blokeditor.com

Built-in blocks

The homepage lists built-in block types including tables, lists, columns, callouts, code, media, embeds, and toggles.Read 9 Oct 2026 · blokeditor.com

Custom blocks

Developers can create custom block tools that render, edit, and save their own data.Read 9 Oct 2026 · blokeditor.com

Data format

Blok saves editor content as structured JSON blocks that can be stored and loaded back.Read 9 Oct 2026 · blokeditor.com

Document storage

The server service does not store documents; saving and loading documents remains the app developer’s responsibility.Read 9 Oct 2026 · blokeditor.com

Framework support

The homepage offers a framework-agnostic JavaScript/TypeScript core, React and Vue adapters, an Angular component, and a CDN script.Read 9 Oct 2026 · blokeditor.com

Frameworks

Blok provides a framework-agnostic JavaScript and TypeScript core, React and Vue adapters, an Angular component, and a no-build CDN script.Read 9 Oct 2026 · blokeditor.com

Internationalization

Blok supports 69 locales, with English bundled and the other 68 locales loaded on demand.Read 9 Oct 2026 · blokeditor.com

Limit

The tutorial says Blok registers no block tools by default, so users must register the block types they need, including the paragraph block.Read 9 Oct 2026 · blokeditor.com

Link preview limit

Link previews work for roughly 70% of pasted sites, and unsupported previews fall back to a plain link showing the domain.Read 9 Oct 2026 · blokeditor.com

Localization

The homepage states that Blok supports 69 locales and is RTL-ready.Read 9 Oct 2026 · blokeditor.com

S3 support status

The maker says S3-compatible uploads have not been tested against a real bucket and recommends trying them on a throwaway bucket before relying on them.Read 9 Oct 2026 · blokeditor.com

Saved format

The editor saves content as typed JSON blocks that can be stored and loaded back by the host application.Read 9 Oct 2026 · blokeditor.com

Security guidance

The server documentation recommends serving uploaded files from a different hostname than the app and says internet-facing deployments should terminate TLS before traffic reaches the service.Read 9 Oct 2026 · blokeditor.com

Undo and redo

The homepage lists conflict-free undo and redo as a feature.Read 9 Oct 2026 · blokeditor.com

Uploads and previews

Uploads and link previews can use existing storage, routes in an ASP.NET Core app, a self-run backend service, or a separately hosted service.Read 9 Oct 2026 · blokeditor.com

Where Specifiction places it

• Rich Text Editor Software#19 of 377.5