A free browser game of the imitation game: as interrogator you question two witnesses — one human, one a current language model such as GPT-4 or Claude — and guess which is which, with identities revealed at the end of each round. You can also play as a witness.
Why I recommend it: Free and the fastest way to build real intuition about what current models sound like — worth twenty minutes before you rely on spotting AI text by feel. It proves nothing about consciousness or intelligence; it measures whether you can be fooled in a short chat, which is a fact about the conversation format as much as about the model.
Free search across academic papers, theses and citations, with links to full text where it is public.
From the site: Google Scholar provides a simple way to broadly search for scholarly literature. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.
Why I recommend it: The fastest way to check whether a claim in a news article traces back to an actual paper. Set an alert on a topic and it will email you new work.
A self-hosted, MIT-licensed AI agent with persistent memory that builds skills over time and reaches you on Telegram, Discord and other channels.
From the site: Self-hosted AI agent that remembers your projects, builds skills automatically, and reaches you on Telegram, Discord & more. MIT license. No tracking.
Why I recommend it: Free and open source, and it runs on your own machine — worth a look if you don't want your project context sitting on someone else's server.
A free, open-source AI coding agent that runs in your terminal, works with multiple model providers and can be installed with a single command.
From the site: OpenCode - The open source coding agent.
Why I recommend it: Free and open source, so you can point it at whichever model you already have access to instead of paying for another subscription.
A free, open-source tool for running and monitoring multiple AI coding agents from one place, with a plugin ecosystem and documentation for the agent CLIs it supports.
From the site: Run them anywhere. Leave them running. Herdr holds real terminals open so your agents keep working when you close the laptop, and gets you back in from any tty.
Why I recommend it: Open source with an active plugin community — useful if you are experimenting with more than one AI coding tool.
The institute behind the Millennium Prize Problems, with free lecture videos, published proofs, historical mathematics archives and details of its research programmes.
Why I recommend it: Free access to serious mathematics — the lecture library alone is worth bookmarking if you are studying or teaching math.
A free searchable database of funded PhD positions, studentships and research masters worldwide, with funding details, deadlines and supervisor contacts.
Why I recommend it: Free to search and filter by funding — use the funded-only filter so you are not applying to positions you would have to pay for.
A free platform for organising practical support around illness, bereavement, new babies or job loss — meal schedules, care calendars, wishlists and updates in one shared page.
From the site: Set up a Give InKind Page to coordinate support from anywhere. Create a Care Calendar, add items to your Wishlist and connect your Crowdfunding - all for free.
Why I recommend it: Free to use and useful during a hard stretch — worth knowing about before you need it, whether for yourself or a colleague.
A free daily briefing on the AI economy — funding, regulation, model releases and safety incidents, summarised with links to primary sources.
From the site: Superpower Daily covers the AI economy with concise daily stories on models, products, agents, startups, business, infrastructure, policy, and culture.
Why I recommend it: Fast way to stay current without living on social media; the regulation items are the ones worth reading closely.
Free, MIT-licensed Python library and documentation for applying AI to satellite and geospatial data, with tutorials, notebooks, a QGIS plugin and video walkthroughs.
From the site: A Python package for using Artificial Intelligence (AI) with geospatial data
Why I recommend it: A free, well-documented open-source project — a good portfolio path if you want to work in mapping, climate or remote sensing.
A free self-assessment that maps your current Linux, cloud and automation skills against Red Hat's role paths and points you to the training and certifications that close the gaps.
Why I recommend it: Take this before you pay for any cloud certification — it tells you where you actually stand and what to study first.
A free, open-source code editor built in Rust for speed, with built-in AI assistance, real-time collaboration and multiplayer editing for pair programming.
Why I recommend it: A fast, free alternative to paid editors — the collaboration mode is handy if you are learning to code with someone else.
A free searchable directory of business software with side-by-side feature comparisons, pricing summaries and verified user reviews across categories like workflow, CRM and accounting.
Why I recommend it: Free to browse and useful when you are choosing tools for a small business — just remember vendors pay for placement, so read the reviews, not the rankings.
Free internet routing lookup tool for exploring Border Gateway Protocol paths, autonomous system numbers, prefixes, and network relationships. Includes a super looking glass and traceroute from distributed probes.
A free AI search assistant that answers questions with cited sources and can run research tasks, useful for company research before an interview or scanning an industry quickly.
Why I recommend it: Good for the twenty minutes of company research you should do before every interview.
Take a free 2-minute diagnostic to get a clear read on what is actually holding you back in your career. The site also offers paid coaching packages.
From the site: Laid off? Expecting a RIF? Ready for your 'What's Next?' Take a free 2-minute diagnostic and get a clear read on what is actually holding you back.
Why I recommend it: Free diagnostic tool; paid coaching packages are also available.
A free job search engine that indexes listings directly from company career pages instead of relying on job board postings, with unusually deep filters for salary, remote policy, visa sponsorship, and experience level.
Why I recommend it: I like this one because the listings come straight from employers, so you run into fewer ghost jobs and reposted duplicates. Use the filters hard — two or three well-matched searches beat scrolling for an hour.
A browsable reference of design vocabulary — layout, type, and interface terms with live examples — useful for describing what you want when you brief a designer or an AI tool.
Why I recommend it: Half of getting good output from an AI design tool is knowing the right word for what is in your head. This is a free vocabulary cheat sheet for exactly that.
U.S. Census Bureau analysis of how many American businesses actually report using AI, broken out by industry and firm size — primary source data rather than survey hype.
Why I recommend it: When someone tells you every company is using AI now, this is the free federal data you check it against. Useful ammunition in interviews and in your own planning.
A free scan that compares your LinkedIn profile against a target job title and returns a score plus specific fixes for your headline, about section, skills, and keywords - the same matching logic Jobscan uses for resumes, applied to your profile.
Why I recommend it: Run it once, fix the three biggest gaps it names, and stop there. The score is a diagnostic, not a target to chase.
A free calculator that estimates the business cost of slow or poor hiring, including vacancy cost, time-to-fill, and turnover impact.
Why I recommend it: Handy on both sides of the table: hiring managers can justify a better process, and candidates can learn what an empty seat actually costs.
A free interview practice session with Eightfold's AI interviewer that gives you personalized feedback in minutes. No resume required, open to adults 18 and over.
From the site: AI Career Day: practice a real interview with the Eightfold AI Interviewer and get personalized feedback in minutes. Free. No resume. 18+.
Why I recommend it: Use it as a low-stakes rehearsal. The feedback will not replace a human coach, but hearing yourself answer out loud once removes most of the nerves from the real conversation.
Free videos from Never Search Alone explaining the Job Search Council method: small peer groups that help you define your ideal role and hold each other accountable through the search.
Why I recommend it: Searching alone is the single biggest reason people stall out. Watch a couple of these, then start or join a council of three or four people. It changes the pace of everything.
A free job search workspace: build a resume, then track every application, contact, and interview stage in one place.
Why I recommend it: Most searches stall from disorganization, not from lack of effort. Track applications somewhere other than your inbox so you know what to follow up on and which version of your resume you actually sent.
A simple free tool for cleaning watermarks and clutter out of text, docs, PDFs, and images before you share them.
In plain terms: This free web tool removes hidden AI marks, odd spacing, and metadata from text, documents, and images. You can paste text or upload files to quickly clean up your content before sharing it.
From the site: A simple Sabrina tool for cleaning text, docs, PDFs, and images before you share.
Why I recommend it: Handy for tidying up documents you have permission to reuse — templates, your own exports, sample files.
Best Free & Low-Cost AI Tools for Your Job Search (2026)
A 3-page guide with 35 vetted AI tools across resume writing, mock interviews, job search copilots, job scraping, company intel, salary data, and job-fit scoring — each with its real pricing checked against the vendor's own page.
In plain terms: This guide lists 35 verified free and low-cost AI tools for job seekers. You can use it to find help with writing resumes, practicing interviews, checking salaries, and finding open roles.
Why I recommend it: Start here if you are overwhelmed by AI job-search tools. Everything listed has a usable free tier, and the pricing was verified directly with each vendor.
Free invoicing, receipts, and basic accounting for solo founders.
In plain terms: This online software helps freelancers and small business owners manage their finances in one place. You can track income and expenses, send invoices, scan receipts, and accept client payments online.
From the site: Create beautiful invoices, accept online payments, and make accounting easy—all in one place—with Wave’s suite of money management tools.
Why I recommend it: Separate your business money from day one. This makes tax season painless.
