About 9bests.com
An independent catalog and curated ranking directory for modern AI tools and developer utilities. 9bests maintains structured, source-backed product data including pricing, capabilities, availability, and product changes.
Our Purpose
9bests.com is an independent software directory and intelligence substrate that tracks AI applications, developer tools, and workflow automation platforms. Our goal is to help professionals quickly discover software that matches their workflows by presenting structured specifications, documented pricing models, and curated category highlights.
Domain History & Scope Note
From October 2020 to 2025, this domain previously hosted an unrelated Blogger product blog titled "The 9 Best Products" (covering consumer goods and vaping products). In early 2026, 9bests.com was fully relaunched and rebuilt from scratch as an independent AI tools review and comparison directory maintained by Bill Gao. All legacy 2020β2025 blog posts and taxonomy routes were permanently retired and decommissioned.
Editorial & Platform Roles
We maintain full transparency regarding the maintainer and the curation criteria:
Bill Gao
Founder & Lead Editor
Independent developer and systems builder (building optimization and scheduling systems; active on GitHub since 2017). Evaluates AI toolchains, workflow engines, and official vendor specifications, assuming personal editorial responsibility for published ratings and taxonomy benchmarks.
9bests
AI Tool Catalog & Directory
The public catalog structuring tool listings across 11 core categories, providing feature comparisons and category directories.
IPIPQ AI Lab
Research & Taxonomy Framework
Provides the taxonomy guidelines and structured criteria used to categorize software capabilities and compare feature sets.
How We Curate & Review
Rankings on 9bests are determined editorially without paid placement. Our review process relies on verifiable public sources:
1. Public Specs & Pricing
We inspect official vendor pricing pages, documentation, release notes, and repository metrics.
2. Feature Differentiation
We analyze distinct capabilities, supported platforms, and target user personas within each category.
3. Head-to-Head Mapping
Tools are contrasted on key attributes to help users evaluate tradeoffs based on their budget and needs.
4. Editorial Review by Bill
Lead editor Bill reviews and approves category rankings, scoring distributions, and editorial notes.
Factual Corrections & Suggestions
AI software updates frequently. If you are a tool creator or user and notice an outdated specification or pricing change, please email Bill directly at gyjbill@gmail.com. We review and update entries upon verifying the documentation.