The Chrome Web Store has hundreds of “AI assistant” extensions. Most of them are the same chat sidebar with a different logo. This post is the short version of an honest sort, written by people who ship one of these tools (Clicky) and have spent a lot of time inside the others. The criterion is simple: does it actually help when you are working in a SaaS dashboard — HubSpot, Salesforce, Notion, Jira, Linear, Stripe — not just when you are reading articles?
What “for SaaS” actually means
Most AI Chrome extension reviews benchmark on the wrong job. They test with “summarise this Wikipedia article” or “translate this paragraph” — tasks where every modern model performs roughly the same. The work that actually consumes your day in 2026 is operating a complex SaaS interface: finding the right setting, understanding what a field means, locating the export button, deciding which of seven toggles disables the notification you do not want.
That work has a different shape from reading. It needs three things a chat sidebar usually does not give you well:
- DOM grounding. An answer like “use the export button in the top-right” is useless on a page that has been re-themed three times this year. The assistant has to point at the actual element.
- Latency. If the assistant takes eight seconds to load and four more to type back at you, you have already clicked three things and found it yourself.
- Narrow permission scope. SaaS dashboards usually contain customer data your security team does not want a third-party extension reading in the background.
Different extensions trade these off in different directions. The ranking below is not “objectively best” — it is “here is the right one for the job you are actually doing.”
The seven extensions, at a glance
| Extension | Shape | Best at | Permission scope | Entry price |
|---|---|---|---|---|
| Clicky | Voice + DOM halo | Pointed in-app questions | activeTab only | Free / 19€/mo |
| Monica | Chat sidebar | Long-form writing, translation | All sites | Free / ~$16.6/mo |
| HARPA AI | Sidebar + automation | Page monitoring, scraping | All sites | Free / ~$19/mo |
| MaxAI.me | Quick-action sidebar | One-click rewrite/summarise | All sites | Free / ~$10/mo |
| Sider | Multi-model sidebar | Model comparison, deep chat | All sites | Free / ~$8.3/mo |
| Merlin AI | Chat sidebar | Affordable everyday chat | All sites | Free / ~$14.25/mo |
| Wiseone | Reading overlay | Citation-aware article reading | All sites | Free / ~$8/mo |
Prices read from each vendor’s public pricing page in August 2026, rounded to the nearest dollar at annual-billing rates. USD where applicable; Clicky bills in EUR. Permission scope read from each extension’s Chrome Web Store listing.
1. Clicky — push-to-talk + DOM halo
Disclosure first: we make Clicky. We have tried hard to be fair to the other six, and we put Clicky at #1 only on the specific job this post is about — operating a SaaS dashboard. For long-form writing or translation, see #2.
Clicky is a push-to-talk extension. You hold the Alt key, ask a question about what is on screen (“where is the export button?”, “what does this field do?”, “is there an invoice in this account?”), and release. A voice answer plays through ElevenLabs, and a halo is drawn on the actual DOM element on the page. If the page reflows, the halo sticks to its selector. There is no sidebar to open, no chat history, no model picker. Free tier uses Claude Haiku 4.5; paid uses Claude Sonnet 4.6.
The permission scope is activeTab only — the extension can see a page strictly on the press of Alt, never in the background, never on tabs you are not actively using. Memory is session-only. That makes Clicky an unusually easy install on a corporate machine. The full reasoning is in our pillar piece on agentic browser assistants and the privacy framework in Chrome Extensions That Do Not Track You.
Where it loses: it is not the tool to use to draft a long email, write a blog post, generate an image, translate a document, or compare models side by side. Different shape, different job.
2. Monica — multi-model chat sidebar
Monica is the most established multi-model chat sidebar on the Chrome Web Store. It fronts GPT, Claude, Gemini, DeepSeek, and others from the same panel, with translation, image generation, and (as of 2026) some video generation bundled in. If your SaaS workflow is dominated by writing — replying to support tickets, drafting LinkedIn updates, translating a knowledge base — Monica is the right tool.
It costs more permission than Clicky (broad host access to all sites) and stores conversation history server-side, which is the price of its persistence features. We covered the comparison in detail in Clicky vs Monica.
3. HARPA AI — page automation
HARPA AI is best understood as a no-code automation tool that happens to ship as a Chrome extension. Its strength is recurring tasks: monitor a page for price changes, scrape a list of items into a sheet, run a sequence of clicks on a web form. For SaaS workflows that involve pulling data out of an admin dashboard on a schedule, HARPA earns its place.
It also has a chat sidebar — that is the part most reviews talk about — but the differentiator is the automation runtime. The cost of that breadth is the largest permission surface of any extension on this list, and a steeper learning curve. For pointed in-tab Q&A, Clicky is faster; for “run this every Monday morning,” HARPA is built for it.
4. MaxAI.me — quick-action sidebar
MaxAI.me takes the chat-sidebar shape and optimises it for one-click actions: select text, see a floating menu, choose “Rewrite,” “Summarise,” or “Translate.” If you constantly process inbound text (emails, LinkedIn messages, support replies) inside SaaS tools, MaxAI’s quick-action menu is one of the most efficient interfaces on the market.
Like Monica and HARPA, it requests broad-host permission. Unlike Clicky, it does not point at on-page elements; it operates on selected text. Pick MaxAI when your work is text in / text out; pick Clicky when your work is “help me find this control.”
5. Sider — multi-model power user
Sider overlaps with Monica on the multi-model angle, with a heavier focus on power users who want to build prompt libraries, run multi-agent setups, or compare model outputs in detail. For SaaS work, it is most useful when the “in-app” question is really “help me draft a complex response to what is in this ticket,” not “where is the right button.” The Clicky-vs-Sider comparison lives at /blog/clicky-vs-sider.
6. Merlin AI — affordable chat
Merlin AI is the budget-friendly entrant in the chat-sidebar bracket. The free tier is usable for occasional questions, the paid tier is the cheapest of the sidebar pack, and the feature set covers the common cases (chat, summarise, write). It does not differentiate strongly on any single axis, which is precisely why it earns a spot — for many users who want “an AI chat panel in my browser, cheap, no drama,” Merlin is the right answer.
Same caveats as the others in this category: broad-host permissions, server-side history, no DOM grounding. If those are dealbreakers, skip to Clicky; if they are not, Merlin is a defensible default.
7. Wiseone — citation-aware reading
Wiseone is the outlier on this list — it is built for reading articles, not for operating SaaS tools. We include it because the boundary blurs: a lot of SaaS work in 2026 involves reading dense documentation (Stripe’s API reference, an internal Notion page, a long Confluence article), and Wiseone’s citation-aware overlay (it suggests adjacent sources and explains terms inline) is genuinely useful for that.
It will not help you find the right toggle in a HubSpot setting page. It will help you understand a complicated paragraph in your own product’s documentation while you build something on top of it. Different job again.
How to pick (the honest version)
The temptation with a list like this is to pick the one with the most features. Resist it. The shape of the extension matters more than the feature count. Three rules of thumb:
- If your work is operating SaaS dashboards — finding controls, understanding fields, navigating complex interfaces — pick the extension with DOM grounding (Clicky) and install one chat sidebar separately for the writing tasks.
- If your work is reading and writing inside the browser — drafts, translations, summaries, replies — pick a chat sidebar (Monica, MaxAI, Sider, or Merlin) based on which model mix and price you prefer.
- If your work is repetitive automation across pages — scraping, monitoring, scheduled tasks — HARPA earns the slot, and you accept the broader permission cost as the price of the automation runtime.
Most users on a SaaS-heavy machine end up with two installs: one targeted (Clicky) and one broad sidebar (one of #2–#6). They occupy different slots in your day and do not really compete for the same moment. The privacy story is also more honest in that pairing: a narrow tool that only fires on Alt-press, plus a broad tool that you can disable on sensitive sites with per-site permissions.
Frequently asked questions
What is the best free AI Chrome extension for SaaS in 2026?
For pointed in-app questions on a SaaS dashboard (where is X, what does Y mean, click Z), Clicky’s free Explorer plan (10 push-to-talk turns per day, voice answers, DOM halo) is the narrowest and the only one with element-level grounding. For long-form writing in the browser, Monica’s and Sider’s free tiers are more generous. The honest answer is “both, for different work.”
Which AI Chrome extension has the smallest privacy footprint?
Of the seven on this list, Clicky requests the narrowest permission scope (activeTab, fired only on Alt-press) and stores nothing server-side beyond the session. The others all use broad-host permissions and persistent server-side history. Detailed framework for evaluating this in Chrome Extensions That Do Not Track You.
Can a single extension cover both writing and in-app navigation?
Not well, in 2026. The interaction shapes are different enough that the extension that wins one usually loses the other. Chat sidebars optimise for breadth and persistence; voice-and-halo assistants optimise for latency and grounding. Most heavy users install one from each category. We expect this to keep being true through 2027 — agentic browsers like Comet and Atlas may eventually fold both jobs into the browser itself, but for now they are not as good at either as a focused extension is. We covered that in ChatGPT Atlas & Perplexity Comet vs a Plain Extension.
How were these seven picked?
Three filters: (1) live and updated within the last 90 days as of August 2026, (2) explicitly markets itself as an AI assistant for productivity (not a niche tool like a Grammarly or a translation plug-in), and (3) crosses 50,000 weekly active installs on the Chrome Web Store, with the exception of Clicky which we include because we make it. Everything else on the store either fails one of those filters or is a clone of something on this list.
Part of our comparisons series. See also the one-on-one breakdowns of Clicky vs Monica, Clicky vs Sider, and the upcoming Clicky vs HARPA AI piece.