ToolRankBest AI tools with browser extensions
Updated 24 Oct 2026 · Prices from vendor pages only · How we rank →
The short answer
Each of these tools offers a Chrome or browser extension, so it works on the pages you already use. ChatGPT comes first: the broadest general assistant: a usable free plan, apps on every major platform and a ladder of paid plans for heavier use. The cheapest verified paid plan here is Buffer Essentials ($5/month per channel ($60 billed yearly)). 9 of the 10 have a free plan we could confirm. Every price below is from the vendor’s own page, checked 18–23 Oct 2026.
Ranked shortlist
- ChatGPT: The broadest general assistant: a usable free plan, apps on every major platform and a ladder of paid plans for heavier use. Plan: Go: $8/month
More messages, uploads and image creation; limited Codex; may include ads - Kombai: A free plan with daily credits, a $20 Pro plan and MCP and Figma support. Plan: Pro: $20/month
2,000 credits a month, no AI training on your data - Jenni AI: A free plan with no card, unlimited citations, and team seats for research groups. Plan: Plus: $12/month as displayed
5,000 autocompletes a month - LanguageTool: A free Basic plan, 30+ languages and team style guides and dictionaries. Plan: Not yet verified
- Buffer: Free plan with AI Assistant and API access; paid plans from $5 per channel. Plan: Essentials: $5/month per channel ($60 billed yearly)
Unlimited posts, advanced analytics - Publer: A free-forever plan, mobile app and MCP and API access on paid plans. Plan: Not yet verified
- Tactiq: A free-forever plan with no card and Pro from $8 per user a month billed annually. Plan: Pro: $8 per user/month, billed annually
Unlimited transcripts, 10 AI credits a month - Scam Sniffer: Browser extension and feeds that flag crypto phishing and wallet-drainer sites. Plan: Standard: From $999/month
Real-time API lookups for one product, priced by query volume - GoPlus Security: Token and address risk-detection APIs used by wallets and exchanges. Plan: Not yet verified
- Zerion: Multi-chain self-custody wallet and portfolio tracker. Plan: Builder (API): $149/month
Up to 250K requests/month
Tools come from several ToolRank categories, so they are grouped by category and then by each category’s editorial rank. Anything we couldn’t confirm on a vendor page says “Not yet verified”.
Side by side
| Rank | Tool | Relevant plan | Starting price | Free plan | Best for | Main limitation | Last checked |
|---|---|---|---|---|---|---|---|
| #1 | ChatGPT | Go: $8/month More messages, uploads and image creation; limited Codex; may include ads | $8/month (Go) | Free plan: unlimited* everyday text chats, limited messages with uploads (vendor footnotes apply) | Everyday drafting, Q&A and file analysis across web and mobile | The free plan gets only the lighter model and limited uploads; top models need Plus or Pro. | 19 Oct 2026 |
| #2 | Kombai | Pro: $20/month 2,000 credits a month, no AI training on your data | $20/month (Pro) | Free: $0/month, 150 credits at sign-up plus 50 a day (max 300 a month) | Frontend developers and teams who want polished UI code from designs or prompts | Credit-based usage; SSO and audit logs need Enterprise | 23 Oct 2026 |
| #3 | Jenni AI | Plus: $12/month as displayed 5,000 autocompletes a month | $12/month (Plus) | Free: $0/month, 10 AI autocompletes a day, unlimited citations | Students and researchers writing papers with citations | Free plan caps autocompletes at 10 a day; team prices need a demo | 23 Oct 2026 |
| #4 | LanguageTool | Not yet verified | Not yet verified | Basic: free, 2,000 characters per text field, 3 AI rephrasings a day | Multilingual writers and teams who want one checker across browser and desktop | Basic caps text at 2,000 characters per field and 3 AI rephrasings a day; prices not shown | 23 Oct 2026 |
| #5 | Buffer | Essentials: $5/month per channel ($60 billed yearly) Unlimited posts, advanced analytics | $5/month per channel (Essentials, billed yearly) | Free plan: $0 forever, 10 scheduled posts per channel, AI Assistant | Creators and small teams scheduling posts on several social networks on a budget | Free plan allows 10 scheduled posts per channel and 1 user | 22 Oct 2026 |
| #6 | Publer | Not yet verified | Not yet verified | Free forever: 1 user, 3 social accounts (not X), 10 scheduled posts per account | Solo creators and small teams who want cheap scheduling and AI-agent access | Paid prices depend on account count and were not shown in the fetched text | 22 Oct 2026 |
| #7 | Tactiq | Pro: $8 per user/month, billed annually Unlimited transcripts, 10 AI credits a month | $8 per user/month (Pro, billed annually) | Free forever, no credit card: 10 transcripts and 5 AI credits a month | Teams who want meeting transcripts and AI notes without a bot joining the call | Free plan caps transcripts at 10 a month; monthly-billing prices were not shown | 23 Oct 2026 |
| #8 | Scam Sniffer | Standard: From $999/month Real-time API lookups for one product, priced by query volume | From $999/month (Standard API) | Free browser extension; open-source scam database ($0, free for commercial use) | Wallet users who want free phishing warnings, and teams that need a scam blocklist API | Real-time API access starts at $999/month | 19 Oct 2026 |
| #9 | GoPlus Security | Not yet verified | Not yet verified | Not yet verified | Wallets and dApps checking token, NFT, address and dApp risk through an API | API prices are not published on the pages we checked | 19 Oct 2026 |
| #10 | Zerion | Builder (API): $149/month Up to 250K requests/month | $149/month (Builder API plan) | Free wallet on iOS, Android, extension and web; free Developer API plan ($0 forever, 2K requests/day) | Self-custody wallet and multichain portfolio tracking, plus a wallet-data API for developers | Premium price is not shown on the homepage; API paid tiers start at $149/month | 18 Oct 2026 |
Prices as listed by each vendor on the last-checked date, USD, before tax. Plans and limits change, so follow the sources below.
Who should pick which
Pick ChatGPT for everyday drafting, Q&A and file analysis across web and mobile (Go: $8/month); think twice if you need guaranteed access to the strongest models without paying. Pick Kombai for frontend developers and teams who want polished UI code from designs or prompts (Pro: $20/month). Watch out: credit-based usage; SSO and audit logs need Enterprise. Pick Jenni AI for students and researchers writing papers with citations (Plus: $12/month as displayed). Watch out: free plan caps autocompletes at 10 a day; team prices need a demo. Pick LanguageTool for multilingual writers and teams who want one checker across browser and desktop (free plan: Basic: free, 2,000 characters per text field, 3 AI rephrasings a day). Watch out: basic caps text at 2,000 characters per field and 3 AI rephrasings a day; prices not shown. Pick Buffer for creators and small teams scheduling posts on several social networks on a budget (Essentials: $5/month per channel ($60 billed yearly)). Watch out: free plan allows 10 scheduled posts per channel and 1 user. Pick Publer for solo creators and small teams who want cheap scheduling and AI-agent access (free plan: Free forever: 1 user, 3 social accounts (not X), 10 scheduled posts per account). Watch out: paid prices depend on account count and were not shown in the fetched text. Pick Tactiq for teams who want meeting transcripts and AI notes without a bot joining the call (Pro: $8 per user/month, billed annually). Watch out: free plan caps transcripts at 10 a month; monthly-billing prices were not shown.
FAQ
Which of these is cheapest?
Buffer Essentials ($5/month per channel ($60 billed yearly)) is the lowest paid price we verified on this list (https://buffer.com/pricing, checked 22 Oct 2026). Check the vendor page for tax, billing period and usage limits.
Which of these have a free plan?
ChatGPT: Free plan: unlimited* everyday text chats, limited messages with uploads (vendor footnotes apply); Kombai: Free: $0/month, 150 credits at sign-up plus 50 a day (max 300 a month); Jenni AI: Free: $0/month, 10 AI autocompletes a day, unlimited citations; LanguageTool: Basic: free, 2,000 characters per text field, 3 AI rephrasings a day; Buffer: Free plan: $0 forever, 10 scheduled posts per channel, AI Assistant; Publer: Free forever: 1 user, 3 social accounts (not X), 10 scheduled posts per account; Tactiq: Free forever, no credit card: 10 transcripts and 5 AI credits a month; Scam Sniffer: Free browser extension; open-source scam database ($0, free for commercial use); Zerion: Free wallet on iOS, Android, extension and web; free Developer API plan ($0 forever, 2K requests/day).
How were these tools chosen?
They are the tools in ToolRank's rankings with a browser extension listed by the vendor, confirmed on the vendor's own website on 18–23 Oct 2026. Tools we could not verify are left out rather than guessed, and anything unconfirmed is marked Not yet verified.
Sources
- ChatGPT: ChatGPT and Codex plan prices (OpenAI docs) checked 19 Oct 2026
- ChatGPT: ChatGPT pricing (plan features) checked 19 Oct 2026
- ChatGPT: Download ChatGPT (desktop and mobile) checked 19 Oct 2026
- Kombai: Kombai pricing and FAQ checked 23 Oct 2026
- Jenni AI: Jenni AI pricing checked 23 Oct 2026
- Jenni AI: Jenni AI team plans checked 23 Oct 2026
- LanguageTool: LanguageTool Premium and Teams checked 23 Oct 2026
- Buffer: Buffer pricing and FAQ checked 22 Oct 2026
- Buffer: Buffer mobile apps checked 22 Oct 2026
- Publer: Publer plans checked 22 Oct 2026
- Tactiq: Tactiq pricing checked 23 Oct 2026
- Scam Sniffer: Scam Sniffer homepage and pricing checked 19 Oct 2026
- GoPlus Security: GoPlus homepage checked 19 Oct 2026
- GoPlus Security: GoPlus Security API checked 19 Oct 2026
- GoPlus Security: GoPlus docs checked 19 Oct 2026
- Zerion: Zerion homepage checked 18 Oct 2026
- Zerion: Zerion API pricing checked 18 Oct 2026
Related comparisons
Profiles: ChatGPT · Kombai · Jenni AI · LanguageTool · Buffer · Publer · Tactiq · Scam Sniffer · GoPlus Security · Zerion
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