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Saver API: serialize the editor to JSON

Save and export editor content.

Last updated Sep 8, 2026Edit this page on GitHub

Reaching the editor instance

The methods below run on the editor you created with new Blok(). They are available once editor.isReady resolves.

TypeScript
// You already hold the instance returned by the constructor.
const editor = new Blok({ holder: 'editor' });
await editor.isReady;

// Call any API method on it.
editor.caret.setToLastBlock('end');

Methods

saver.save()

Promise<OutputData>

Alias for the main save() method. It rejects while read-only mode is enabled. It warns and throws Error("Blok's content can not be saved in read-only mode") before reaching the Saver. Guard the call with editor.readOnly.isEnabled, or call await editor.readOnly.set(false) first.

When to use

Identical to editor.save(). It is there for code that works through the saver module. Both await the full block tree.

Errors

  • Read-only mode is enabled (editor.readOnly.isEnabled === true).

    Blok's content can not be saved in read-only mode

    Disable read-only with readOnly.set(false) before saving, or gate the call on readOnly.isEnabled.

  • Collecting the data failed (a tool's save() threw).

    Blok's content can not be saved because collecting data failed

    Inspect the rejected error: it is the tool's own error whenever the Saver recorded one.

TypeScript
if (!editor.readOnly.isEnabled) {
  const data = await editor.saver.save();
  // Returns: { version, time, blocks }
}