Add charaters options in Recursive Character Text Splitter node

arifkhanov2000 · January 12, 2026, 11:39am

Hello! I greatly appreciate the developers and contributors of n8n for such an amazing project. I have faced a problem with the Recursive Character Text Splitter node.

It would help if there was a node for:

My use case:

Recently, I used n8n to create a company documentation RAG system. The company’s documents are formatted in structured PDF files. Therefore, recursive character text splitting is a good option for breaking up the documents into chunks. However, the basic separator character options handle the task poorly. [‘\n\n’,‘\n’,’ ‘,’']. It would be great if you could modify this part so that users can set characters (see the comment // TODO: These are the default values, should we allow the user to change them?).

Any resources to support this?

github.com/n8n-io/n8n

packages/%40n8n/nodes-langchain/nodes/text_splitters/TextSplitterRecursiveCharacterTextSplitter/TextSplitterRecursiveCharacterTextSplitter.node.ts

master

import type {
	RecursiveCharacterTextSplitterParams,
	SupportedTextSplitterLanguage,
} from '@langchain/textsplitters';
import { RecursiveCharacterTextSplitter } from '@langchain/textsplitters';
import {
	NodeConnectionTypes,
	type INodeType,
	type INodeTypeDescription,
	type ISupplyDataFunctions,
	type SupplyData,
} from 'n8n-workflow';

import { logWrapper } from '@utils/logWrapper';
import { getConnectionHintNoticeField } from '@utils/sharedFields';

const supportedLanguages: SupportedTextSplitterLanguage[] = [
	'cpp',
	'go',
	'java',

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Are you willing to work on this?

I can fix the TypeScript file, but I will likely lose some essential documentation and test parts for this update. Therefore, it would be best if the maintenance team fixed the problem.

arifkhanov2000 · January 15, 2026, 3:34pm

Upd. Opened pull request with fixes