Why This Tool Exists
Most people sign contracts they don't fully understand. Not because they're careless, but because contract language is deliberately technical, and access to legal advice is expensive and slow. A standard solicitor review of a single employment contract can cost several hundred pounds and take days — by which time the offer may have lapsed.
UK Contract Clause Checker was built to give individuals and small businesses a fast, structured first read of any contract clause — in plain English, with specific red flags identified, and with actionable guidance on what to negotiate.
What the Tool Does
When you paste a contract clause, the tool analyses it against UK-specific legal standards and produces a structured report covering seven categories: plain English meaning, your obligations, counterparty advantage, red flags, UK enforceability insight, negotiation guidance, and — for higher-risk clauses — a suggested counter-proposal you can use as a starting point.
The tool uses AI to generate these outputs, with a carefully designed analysis engine that distinguishes between absent-but-normal provisions, genuine ambiguity, and active structural risk. Risk scores are calibrated against UK norms for the specific clause type, not general legal standards.
What the Tool Is Not
This tool is not a law firm and does not provide legal advice. It does not create a solicitor-client relationship. AI analysis can make mistakes, miss context, or misapply legal principles — particularly on unusual or complex clauses. The tool is intended as an educational aid and a starting point for informed conversations with legal professionals, not as a substitute for them.
For any contract that is financially significant, involves employment rights, or has long-term consequences, we strongly recommend consulting a qualified UK solicitor.
Who Built This
UK Contract Clause Checker is a free tool built by the team at SmartWriteTools, a free set of browser-based writing micro-tools for students, bloggers, content marketers, and professionals — word counters, readability checkers, keyword density tools, and more. If you find it useful, take a look at what else we're building.
How to Use the Tool
Paste a single clause — not an entire contract — into the analyser on the home page. The tool works best on individual clauses of up to around 1,500 characters. If your contract has multiple clauses you want to check, analyse them one at a time for the most accurate results.
You will need a free Anthropic API key to run the analysis. This keeps the tool free for everyone — the API cost is covered by your own account rather than centrally, which means there are no usage limits imposed by us.
Free, no login required, no data stored.