Alternatives · 2026
Best Sider Alternatives in 2026
24 alternatives · 21 with a free plan · Updated
What are the best Sider alternatives?
The best Sider alternatives for AI Assistant in 2026 are Sider (browser extension AI assistant, free), Walles.AI (browser AI assistant and AI summarizer, free) and Content Assistant (AI writing assistant browser extension for drafting, free). 21 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than Sider? Below are 24 alternatives in AI Assistant, AI Browsers and AI Chatbot, all closely matched, ranked by how much they overlap with Sider. Sider itself is free. Each entry shows what the tool does, what it shares with Sider, its key features and pricing.
What is Sider?
Type a question, drop in a PDF, paste a YouTube link or highlight text on a page, and Sider answers with the AI model you pick. Sider is an AI assistant that puts several AI models under one roof, so you can chat, summarize, translate, write and generate images without switching between sites.
- Categories
- AI AssistantAI BrowsersAI ChatbotAI PDFAI ReaderAI TranslateAI Writing AssistantsAI Youtube SummaryText to Image
- Pricing
- Free
Key features of Sider
- Integrates multiple AI models in one platform
- Offers a variety of AI tools for different tasks
- Available as a browser extension
- Group AI chat feature for verifying answers
- Hallucination may occur in AI chat
Sider alternatives compared
| Tool | Pricing | Shared with Sider | Match |
|---|---|---|---|
| Sider | Free | — | Original |
| Sider | Free | AI Assistant, AI Browsers, AI Chatbot, AI PDF, AI Reader, AI Translate, AI Writing Assistants, AI Youtube Summary | Strong match |
| Walles.AI | Free | AI Assistant, AI Chatbot, AI PDF, AI Translate, AI Writing Assistants, AI Youtube Summary | Strong match |
| Content Assistant | Free | AI Assistant, AI Browsers, AI Chatbot, AI Translate, AI Writing Assistants | Strong match |
| Remail | Paid | AI Assistant, AI Chatbot, AI Reader, AI Translate, AI Writing Assistants, AI Youtube Summary | Strong match |
| BLUF | Free | AI Assistant, AI Browsers, AI Chatbot, AI Reader, AI Youtube Summary | Strong match |
Top 24 alternatives to Sider
- #1
Sider is a browser extension AI assistant that helps you read, write, and chat with ChatGPT, Claude, and Gemini on any webpage.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI PDF, AI Reader, AI Translate, AI Writing Assistants, AI Youtube Summary
- AI assistant integrating ChatGPT
Pricing: free, same as Sider
- #2
Walles.AI is a browser AI assistant and AI summarizer that answers questions, summarizes web pages and YouTube videos, and pulls insights from PDFs.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Translate, AI Writing Assistants, AI Youtube Summary
- A browser AI assistant for smarter work and faster learning on the web
Pricing: free, same as Sider
- #3
Content Assistant is an AI writing assistant browser extension for drafting, editing and brainstorming text through chat prompts.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Translate, AI Writing Assistants
- Enhances content interaction and personalized experiences
- Offers a wide range of features for content creation and editing
- Provides smart context retrieval for relevant information
Pricing: free, same as Sider
- #4
Chrome extension that drafts email replies in Gmail, an AI email reply generator for faster inbox work.
In common with Sider: AI Assistant, AI Chatbot, AI Reader, AI Translate, AI Writing Assistants, AI Youtube Summary
- AI-powered Chrome extension for Gmail that drafts high-quality email replies quickly
Pricing: paid, while Sider is free
- #5
BLUF is an AI summarizer browser extension that condenses web pages, PDFs and YouTube videos and answers questions about them using ChatGPT.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Reader, AI Youtube Summary
- It can provide summaries of the page and handle up to 50k words! Available in Chrome…
Pricing: free, same as Sider
- #6
An AI chatbot that bundles writing, translation, summaries and image generation in one place, and can be reached through WhatsApp.
In common with Sider: AI Assistant, AI Chatbot, AI Translate, AI Youtube Summary, Text to Image
- Offers a wide range of AI-powered tools in one platform
- Integrates with WhatsApp for convenient access
- Supports multiple languages (English
Pricing: free, same as Sider
- #7
Chippy is a Chrome browser extension that puts ChatGPT chat in your browser without switching tabs, with free daily queries.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Translate, AI Writing Assistants
- Convenient access to ChatGPT without switching tabs
- Easy to use with simple input methods
- Privacy-focused with local data storage
Pricing: free, same as Sider
- #8
AI PDF chat tool that answers questions, summarizes, and searches PDF documents, with clickable page citations and support for over 90 languages.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Reader, AI Translate
- It supports over 90 languages and provides citations with clickable page references
Pricing: free, same as Sider
- #9
TinaMind is an AI browser extension that gives you explanations, translations, and chat while you browse the web.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Translate, AI Writing Assistants
- AI-powered browser extension for explanations
Pricing: free, same as Sider
- #10
MobileGPT is an AI assistant inside WhatsApp for chat, image generation, PDF questions and document drafting on your phone.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Translate, AI Writing Assistants
- Convenient access to AI features within WhatsApp
- Powered by advanced AI models like GPT-4
- DALLE-3
Pricing: free, same as Sider
- #11
AI Anywhere is a desktop AI assistant that brings ChatGPT into your other apps, so you can get help without copy-pasting text.
In common with Sider: AI Assistant, AI Chatbot, AI Reader, AI Translate, AI Writing Assistants
- Desktop AI assistant integrating ChatGPT into all apps for enhanced productivity
Pricing: free, same as Sider
- #12
AI browser assistant for Chrome that brings chat, page-aware replies and web automation into your everyday browsing.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Writing Assistants, AI Youtube Summary
- AI command runs
- Claude 3.5
- API Key models
Pricing: freemium (free plan + paid upgrades); Sider is free
- #13
Kome is an AI summarizer browser extension for web pages, YouTube videos, and PDFs, plus AI writing help and bookmarks.
In common with Sider: AI Assistant, AI Browsers, AI PDF, AI Writing Assistants, AI Youtube Summary
- Kome is an AI browser extension for summarizing
Pricing: freemium (free plan + paid upgrades); Sider is free
- #14
PDFChat is an AI PDF chat tool that answers questions about documents, extracts data, and runs tasks on uploaded files.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Reader, AI Translate
- AI tool to chat with PDFs
Pricing: paid, while Sider is free
- #15
Converse is an AI reading tool that summarizes web articles, PDFs, and YouTube videos and lets you chat with their content.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Reader, AI Youtube Summary
- This can be used for commercial purposes
Pricing: free, same as Sider
- #16
Free open-source Slack bot that summarizes webpages, documents and videos and supports voice chat for AI summarizer and assistant use.
In common with Sider: AI Assistant, AI Chatbot, AI Reader, AI Translate, AI Youtube Summary
- Summarizes various content types (webpages
- Offers voice communication
- Provides hot news summaries
Pricing: free, same as Sider
- #17C
ChatAI is an all-in-one AI chatbot and image generator for chat, text-to-image art, and document writing, with a free plan.
In common with Sider: AI Assistant, AI Chatbot, AI Translate, AI Writing Assistants, Text to Image
- An all-in-one AI platform for chatting
Pricing: free, same as Sider
- #18
Browser assistant and web app for AI research, writing, and summarizing web pages, YouTube videos, and documents.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Writing Assistants
- It helps users research
Pricing: free, same as Sider
- #19
AskOne is an AI web browsing assistant that summarizes and translates pages and gives access to several large language models.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Translate
- AI assistant for web browsing with LLM integration and productivity features
Pricing: freemium (free plan + paid upgrades); Sider is free
- #20
Desktop AI writing assistant with access to several AI models, prompt templates and a copilot that works across apps and websites.
In common with Sider: AI Assistant, AI Chatbot, AI Translate, AI Writing Assistants
- Access to multiple AI models in one platform
- Desktop application for seamless integration
- AI copilot functionality works across various apps and websites
Pricing: free, same as Sider
- #21
nele.ai is a secure AI platform for companies that centralizes AI models, prompts, and users with data protection compliance built in.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Translate, AI Writing Assistants
- Secure and data protection compliant AI usage
- Centralized management of AI models
- Fair licensing model with usage-based pricing
Pricing: free, same as Sider
- #22
AI browser extension that gives instant answers and summaries from YouTube videos, Gmail, PDFs, and web pages on desktop.
In common with Sider: AI Assistant, AI Browsers, AI Chatbot, AI Youtube Summary
- Provides instant answers across multiple platforms (YouTube
- Gmail
- PDFs
Pricing: free, same as Sider
- #23
WappGPT is a WhatsApp AI chatbot built on OpenAI models for chat answers, writing help and custom image creation.
In common with Sider: AI Assistant, AI Chatbot, AI Translate, AI Writing Assistants
- AI assistant on WhatsApp powered by OpenAI for personalized assistance and productivity
Pricing: paid, while Sider is free
- #24
ChandlerAi is an affordable AI assistant offering GPT-4 chat, image generation, PDF reading and data analysis for everyday questions.
In common with Sider: AI Assistant, AI Chatbot, AI PDF, AI Youtube Summary
- It also offers image generation and data analysis features to enhance its functionality
- At ChandlerAi
- PDF reading and more
Pricing: free, same as Sider
How we picked these Sider alternatives
We rank tools by how closely they match Sider: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to Sider in 2026?
The closest alternatives to Sider are Sider, Walles.AI, Content Assistant, Remail and BLUF. They are ranked by how many categories and tags they share with Sider and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to Sider?
Sider is the closest match because it shares AI Assistant, AI Browsers and AI Chatbot with Sider. It is free.
Are there free alternatives to Sider?
Yes. 21 of the 24 alternatives have a free or freemium plan, including Sider (free), Walles.AI (free), Content Assistant (free), BLUF (free) and Chat & Ask AI (free). Sider is free.
Which Sider alternatives are paid or enterprise tools?
Remail (paid), PDFChat (paid) and WappGPT (paid) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does Sider compare to Sider?
Sider overlaps with Sider in AI Assistant, AI Browsers and AI Chatbot. Its listed features include AI assistant integrating ChatGPT. Pricing: free, same as Sider. Open the side-by-side compare page for a full breakdown.
What category is Sider in?
Sider is listed under AI Assistant on SoftwareVital. Browse that category to see more tools in the same group.