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12 Best Onyx Alternatives in 2026

Looking for alternatives to Onyx? Below are 12 tools that do a similar job, compared on the details that decide whether you can actually use them: the size of the free allowance, whether a credit card is required, and whether the output is watermarked. Onyx itself we have not found a confirmed free allowance, and we have not confirmed the credit-card requirement.

Onyx at a glance

The open-source AI enterprise search platform that helps teams find information across all company data.

Easy start 0/3
Read the full Onyx review →

Comparison

Hover over any tool name for its page. Blank cells mean we have not confirmed that detail yet.

ToolFree tierCardWatermarkFrom
Onyxthis tool———Not published
DocsBot AIYesNot required—Not published
RecallYesNot required—Not published
SliteYesNot required—Not published
HelpjuiceYes——Not published
Kapa.ai14-day trialNot required—Not published
Notion AINo——USD 10
AnythingLLM———Not published
Glean———Not published
ima.copilot———Not published
Mem AI———Not published
mymind———Not published
remio———Not published

Alternatives in detail

DocsBot AI logo
DocsBot AI

Build AI agents that combine trusted knowledge with real actions for customers and teams across your business tools and

Free plan

No CCAuto-renews
Easy start 2/3Open site
Recall logo
Recall

Recall is a personal AI knowledge base

Free plan

No CCAuto-renews
Easy start 2/3Open site
Slite logo
Slite

Slite is the self-maintaining AI knowledge base that stays accurate

Free plan

No CCAuto-renews
Easy start 2/3Open site
Helpjuice logo
Helpjuice

Helpjuice: Knowledge Base Software trusted by 130,000+ users from Amazon, Hertz, Shipt

Free plan

Auto-renews
Easy start 1/3Open site
Kapa.ai logo
Kapa.ai

Build accurate AI agents on your unstructured knowledge Trusted by 200+ companies like OpenAI, Monday.com, & Logitec

14-day free trial

No CCAuto-renews
Easy start 1/3Open site
Notion AI logo
Notion AI

AI writing and search inside your Notion workspace

Auto-renews
Details uncheckedOpen site
AnythingLLM logo
AnythingLLM

A free, private AI assistant that runs on your device

Pricing hidden
Details uncheckedOpen site
ima.copilot logo
ima.copilot

ima是以知识库为基础的AI知识管家,提供“搜-读-写”一站式体验

Pricing hidden
Details uncheckedOpen site
Mem AI logo
Mem AI

Let AI organize your team's work—from meeting notes, projects, to knowledge bases

Pricing hidden
Details uncheckedOpen site
mymind logo
mymind

A private place to save your most precious notes, images, quotes and highlights

Pricing hidden
Details uncheckedOpen site
remio logo
remio

remio 是懂你工作上下文的个人 AI 助手与知识库,可自动收集网页、会议、邮件和文件,将其转化为可搜索的知识,并提供结合上下文的 AI 回答。

Pricing hidden
Details uncheckedOpen site

Questions about these alternatives

Is there a free alternative to Onyx?
Yes. 4 of the 12 alternatives listed here have a confirmed free tier. Use the comparison table above to see the exact free allowance for each one.
Which Onyx alternatives do not require a credit card?
4 alternatives confirm that no credit card is required to start. Check the “Card” column — entries marked “Not required” can be used without payment details.
What is the best free Onyx alternative?
The best free alternative depends on your workflow. The table is sorted by how easy each tool is to start (free tier, no card, no watermark). DocsBot AI scores 2 out of 3 and is the strongest free option we have verified.
Can I use Onyx alternatives for commercial work?
Some alternatives allow commercial use on their free tier. Look for the watermark and licensing details on each tool's page — we only mark commercial use when the vendor's own terms confirm it.

More alternatives in Knowledge Management