WebDir.SI
A free, AI-scored web directory of 15,600+ hand-reviewed sites across 101 categories, with a plain-language search assistant.
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WebDir.SI is best for researchers and tool-hunters who want a scored, human-vetted shortlist instead of a raw search engine results page. Its SI Score methodology and Ask SI assistant give it a real edge over generic link lists, but the directory's depth in any single category is thinner than specialist alternatives, and the 'AI productivity tool' label is a stretch for what is fundamentally a discovery resource. If you need to actually do work rather than find tools to do work, look elsewhere.
What is WebDir.SI?
WebDir.SI is a free, web-based directory that indexes over 15,600 websites across 101 categories, each assigned an SI Score based on AI analysis and human editorial review. Categories span AI tools, developer resources, design assets, productivity software, business and marketing platforms, finance, education, and general utilities.
The site's Ask SI assistant lets visitors describe a task in plain language and receive matched site recommendations with feature and access-requirement details. No account or sign-up is needed to browse listings, use the assistant, or view scores. Site owners can submit their tools for inclusion through a 'Get listed' path on the site.
How we scored WebDir.SI
Ease of use scores high because the tool requires zero sign-up, the interface is clean, and Ask SI lowers the barrier to finding relevant sites considerably compared to manual category browsing. Value scores well because the entire product is free with no paywalls. Capability is limited: 15,613 listings across 101 categories is a real asset, but the SI Score methodology is opaque, there is no API, no saved lists, and no ability to do anything with the directory beyond reading it, which puts it well behind tools that actually execute tasks. Delivery lands in the low single digits because no user reviews, sentiment data, or independent assessments of WebDir.SI were found in search, making it impossible to verify whether Ask SI performs as described or whether the 30-day freshness claim holds up in practice; a tool with no third-party validation of its core claims cannot score well here.
Pros and cons
What we liked
- Entirely free with no account required: visitors can browse 15,613 scored listings and use Ask SI without signing up or hitting a paywall.
- Ask SI accepts plain-language task descriptions and returns site recommendations with feature and access-requirement details, which is more useful than keyword filtering alone.
- All 15,613 listed sites are claimed to have been checked within the last 30 days, a freshness standard most static directories do not attempt.
Where it falls short
- The SI Score methodology is not publicly documented in enough detail to judge what 'measurable signals' actually means, making it hard to know whether a score of 74 versus 72 reflects a meaningful quality gap or noise.
- No saved searches, user accounts, personal lists, or API access exist, so power users who want to export or revisit curated shortlists have no path to do that.
- Categorizing WebDir.SI as an AI productivity tool overstates its function: it helps you find tools but does not help you do work, which means it competes poorly against tools in this directory that actually automate or assist tasks.
Key features
WebDir.SI pricing
Fully free for visitors. No paid tiers, no paywalled profiles, and no sign-up required to browse or use Ask SI. A 'Get listed' submission path exists for site owners, but no paid listing fees were surfaced in available sources.
| Plan | Price | Who it is for |
|---|---|---|
| Free | Free | Full access to all 15,613 listings, SI Scores, Ask SI assistant, category browsing, Collections, and Editor's picks. No account required. No documented paid tier exists. |
Pricing reflects what we saw at time of review (2026-10). Always confirm current pricing on the tool's own site.
Who should use WebDir.SI?
Independent researchers, freelancers, and developers who regularly need to vet unfamiliar tools will get the most out of WebDir.SI. The SI Score gives a quick triage signal, and Ask SI can surface relevant options in categories a user might not think to browse manually. Someone building a tech stack from scratch, or a consultant who frequently recommends tools to clients, will find the comparison-by-features angle genuinely useful.
Anyone who needs a tool that actually performs a task, such as writing, scheduling, or data processing, should look elsewhere. WebDir.SI is a discovery layer, not a productivity layer. FutureStoreAI (FSAI), which is already in this directory, covers similar AI tool discovery ground but also lets users experiment directly with multiple AI models in one place, making it the better pick if you want to discover and test in the same session.
Skip it if: Users who need a productivity tool that executes tasks, not one that helps find other tools.
Frequently asked questions
Is WebDir.SI free to use?+
Yes. Browsing all 15,613 listings, using Ask SI, and viewing SI Scores requires no account and no payment. No paid tier was found in available sources.
How is the SI Score calculated?+
The site describes it as based on 'measurable signals' assessed by AI with human editorial oversight, but the specific signals and their weights are not publicly documented. A 'How we rank' page exists on the site and is the place to check for the most current methodology detail.
How many sites are listed, and how current are they?+
The live page shows 15,613 listed sites across 101 categories, with the site claiming all of them were checked within the last 30 days.
Can I submit my own tool or website?+
Yes. A 'Get listed' and 'Submit a site' path is available in the site's navigation. The editorial team applies the SI Score methodology before a listing goes live, though turnaround time is not publicly stated.
Does Ask SI require a login or have a usage limit?+
No login is required to use Ask SI. No documented usage cap was found in available sources, though this could not be independently verified through direct testing.
Is there an API for developers who want to query the directory programmatically?+
No API access was found in available sources. The directory is currently a consumer-facing web interface only, with no documented developer API.
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