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Sider Promo code
Smarter browser, powered by AI
Sider.ai is an advanced AI-powered browser extension and productivity tool that integrates leading AI models—including GPT-4, Claude, and Gemini—directly into your workflow.
Redeemed 575 times - Verified discount · June 2026
Sider
4.6/5
(27)
Deal details
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Save up to $60
Additional 20% off annual Basic and Ultra plans
Eligibility questions
All the applications are manually approved by our Customer Success Team. If you have questions about our application process, please send us an e-mail at applications@joinsecret.com.
Deal details
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Sider Promo Code: Additional 20% off annual Basic and Ultra plans
Below you’ll find clear answers to the most common questions about the Sider promo offer. This FAQ explains how the additional 20% discount works, who can benefit from it, and how to apply it correctly at checkout. Whether you’re trying Sider for the first time or upgrading to unlock more advanced AI features, these answers will help you understand how to activate the discount, how long it lasts, and how to maximize your savings in a simple and transparent way.
How do I redeem this Sider promo code?
To redeem this offer, click “Get deal” on this page to access your unique signup link. Create your Sider account using that link, choose your plan, and enter the promo code at checkout. Once applied, the discount will be reflected in your final price before payment is completed.
Who is eligible for this Sider discount offer?
This offer is generally available to users who sign up through the dedicated deal link and apply the promo code during checkout. As long as the code is entered correctly and the selected plan is eligible, you should be able to activate the discount successfully.
Why should I take advantage of this Sider discount?
This offer gives you an additional 20% off annual Basic and Ultra plans, helping you reduce long-term subscription costs. It’s also valid for one month on Basic, Ultra, and Team monthly plans, making it a flexible way to test premium features at a lower cost before committing to a longer subscription.
Additional 20% off annual Basic and Ultra plans
Eligibility questions
All the applications are manually approved by our Customer Success Team. If you have questions about our application process, please send us an e-mail at applications@joinsecret.com.
General information
Sider is a cutting-edge AI productivity platform designed to change how you interact with information online. By embedding powerful AI models such as GPT-4, Claude, Gemini, and Llama directly into a browser sidebar, Sider transforms everyday tasks—research, writing, summarization, translation, and image generation—into seamless, efficient experiences. You can chat with multiple AI models simultaneously, compare their responses, and leverage advanced tools for summarizing YouTube videos, analyzing PDFs, and extracting insights from images and documents.
Sider’s intuitive interface makes it accessible for everyone, from students and researchers to professionals and content creators. The platform supports a wide range of creative and analytical tasks, including drafting emails, composing articles, translating between over 50 languages, and generating or editing images with AI-powered tools. Its cross-platform compatibility ensures you can access these features on Chrome, Edge, Safari, iOS, Android, Mac, and Windows, making it a truly versatile solution for any workflow.
With features like group AI chat, advanced data analysis, and a customizable prompt library, Sider empowers you to boost your productivity and creativity without switching between multiple apps. Whether summarizing lengthy documents, analyzing code, or creating visual content, Sider’s unified AI assistant streamlines complex processes into a single, user-friendly platform.
Discover exclusive offers on our marketplace today and explore the full potential of AI-driven productivity for your business!
Expert review on Sider
Remember the good old days when “copy-paste” was your productivity hack? 📋 Now imagine you could “copy-paste” entire insights from YouTube, PDFs, or web pages—without lifting a finger. Sorry, Ctrl+C, you’ve been upgraded.
What is Sider?
Sider is an AI productivity platform that embeds powerful models like GPT-4, Claude, and Gemini right in your browser sidebar 🧩✨ It helps you research, write, summarize, translate, and generate images without ever leaving your flow.
Our opinion about Sider:
Sider is perfect for startups, busy marketing teams, researchers, and content creators who need multiple AI brains on tap 🤝🔍 It’s a brilliant way to boost productivity and compare ideas fast—no more switching tabs or chasing scattered tools.
Sider Pricing:
Sider offers a free plan to get started and flexible premium options for heavy users 💸 You only pay for what you need, making advanced AI tools accessible for individuals and teams alike.
- More details about Sider plansBest Sider alternatives:
Looking for similar AI browser sidekicks? 🕵️♀️ There are other tools out there too, including ChatGPT, Perplexity AI, and Copty.ai! Compare Sider alternatives and grab exclusive deals for this software and many others on our platform today. 🚀
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Customer Success Manager
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Frequently Asked Questions about Sider's promo
Can existing Sider users benefit from this promo?
Existing users may be able to benefit if they are upgrading, switching plans, or purchasing a new subscription using the promo code, depending on Sider’s promotion rules. In many cases, these offers are primarily designed for new purchases or upgrades rather than renewals.
What are the guarantees of this Sider promo?
Once the promo code is successfully applied at checkout, the discount is locked into that billing cycle or subscription term. Standard billing, subscription management, and account security policies still apply according to Sider’s official terms.
What are the benefits of this Sider offer?
The main benefit is lowering the cost of accessing Sider’s AI features across multiple plan options. You get flexibility to choose between monthly testing or long-term annual savings, making it easier to adopt AI productivity tools while keeping your software budget under control.
How will I know if I am approved for this Sider deal?
You’ll know the promo code is active when you see the discounted price displayed at checkout before completing payment. After purchase, your billing confirmation and subscription details will reflect the reduced price for the applicable billing period.
Pricing
Basic
$10
/ month
3,600 basic credits per month
200 advanced credits per month
Data analysis
YouTube summary
Pro
$20
/ month
12,000 basic credits per month
400 advanced credits per month
AI Read Aloud
Smart web access
Unlimited
$40
/ month
Unlimited basic credits per month
Unlimited advanced credits per month
Deep research
Audio to text
Additional 20% off annual Basic and Ultra plans
Eligibility questions
All the applications are manually approved by our Customer Success Team. If you have questions about our application process, please send us an e-mail at applications@joinsecret.com.
Sider features
AI-powered sidebar transforming research, writing, and creative workflows instantly.
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Group AI chat and comparison
Pose a question to multiple AI models simultaneously, then compare their answers side-by-side. This feature helps you identify the most accurate or creative solution quickly and efficiently.
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Document and video summarization
Instantly summarize lengthy documents, web pages, and YouTube videos. Sider extracts key points, saving time and helping you grasp essential information without reading or watching everything in full.
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Advanced file and image analysis
Upload PDFs, images, or private files for deep AI-powered analysis. Sider can extract text, summarize content, and provide insights, making complex information easily understandable.
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Writing and email assistant
Draft, rewrite, and optimize emails, articles, and messages with AI suggestions. Sider adapts to your tone and style, ensuring clear, polished communication across platforms.
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AI-powered translation and grammar
Translate text, documents, and web pages into over 50 languages. Sider also checks grammar and adjusts translation style and complexity for accurate, context-aware communication.
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Creative image generation and editing
Generate images from text prompts, remove backgrounds, swap elements, or upscale photos. Sider’s AI art tools make visual content creation and editing simple and accessible.
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Cross-platform compatibility
Access Sider on Chrome, Edge, Safari, iOS, Android, Mac, and Windows. This ensures seamless productivity and AI assistance wherever you work or browse.
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Multi-model AI chat
Sider lets you interact with top AI models like GPT-4, Claude, Gemini, and Llama in one sidebar, enabling instant access to diverse perspectives and smarter responses for any query.
Sider Reviews
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Kyung Fay
Discounted Unlimited Plan That Stuck Thanks to Summaries and Translation
I picked up Sider after getting a Joinsecret perk that cut about 30% off the monthly Unlimited plan, and that made it easier to test it properly, but I stayed because the page summary and quick translation tools fit nicely into my daily workflow
June 8, 2026
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Logan Ondricka
Cross-Site Summaries with Handy PDF Reviews
What I like most is how Sider works across different sites instead of forcing me into a separate workspace, and the PDF summary feature has been genuinely useful for reviewing reports before meetings
May 30, 2026
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Patricia Tillman
All-in-One In-Browser Research Assistant
Sider has become my default browser assistant because I can summarize long articles, compare two tabs, and ask follow-up questions without leaving the page, which saves me a surprising amount of time during research
May 25, 2026
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Ben McDermott
Fast, Lightweight Extension with Useful YouTube Outlines
After testing a few similar extensions, Sider stuck because it’s quick to invoke, doesn’t feel bloated, and the “summarize this YouTube” style features actually produce usable outlines I can turn into tasks, plus I also got the 30% off Sider.ai via Joinsecret when I renewed and it took the sting out of another subscription
May 17, 2026
More Sider's reviews
Sider: Pros and Cons
Pros
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Support for multiple AI models: You can interact with leading AI models in one place, compare outputs, and choose the best responses for your needs
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Rich feature set for productivity: From summarization and translation to image editing and data analysis, Sider covers a wide range of creative and analytical tasks
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Seamless integration with daily workflow: Sider embeds directly into browsers and supports multiple platforms
Cons
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Mobile app feature limitations: Some features available in the browser extension are not fully supported in the mobile app
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Occasional glitches or errors: Users have reported occasional bugs or errors, which can disrupt workflow or require troubleshooting during use
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Limited customization for AI models: Options to customize or fine-tune AI model behavior are somewhat restricted
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