Product guide
Open Companies House accounts and US SEC filings free from this website, with nothing to install. A paid plan gives you more AI questions, the full set of Companies House and SEC tools and a bookmarklet for filing pages on other websites. A Demo licence includes Premium features for 30 days. Graffiti keeps the accounts beside its tools as you work.
Video tour
Take a broader tour of trends, ratios, AI, review, the Companies House network and dark mode in the tool itself.
Quick start
Keep the published accounts in view while you inspect the data and check the source of each figure.
Use Browse filings to search Companies House and open a set of accounts. For a US company, switch the search to SEC (US), find it by name, ticker or CIK and open its 10-K. You can also paste a link to a Companies House filing. To open a local iXBRL document (.xhtml, .html or .htm) or a report package (.zip, .xbri or .xbr), open any filing and choose Open from the Graffiti toolbar. With a paid plan, the bookmarklet also opens iXBRL filings on other websites. Your browser reads local files; simply opening one does not upload the original file to Graffiti.
Use Contents to move through the accounts. Search by tag, value or period. Filter standard and company-specific tags, or show figures Graffiti found in untagged tables.
Inspect a tag, check the filing, review its figures, compare Companies House or SEC records, ask AI a question, add notes or export the data. To report a bug or suggest a feature, open Help and choose Feedback.
Ask a question in plain English. Free includes one question per filing, up to 3 a day per account, with no follow-ups. Without signing in, everyone on the same internet connection, such as an office network, shares 3 a day. Paid plans add follow-up questions, relevant text from notes and accounting policies, and live web search. Filings too large for the Free limit need Basic or Premium. Your question and extracted filing data are sent to OpenAI when you use an AI feature.
Validation checks the iXBRL against the XBRL specifications and applicable filing rules. Review flags figures and patterns that may need a closer look. You can ask AI to explain a finding.
Review financial trends, ratios, filing history, directors and ownership, with a graph network, and compare as many sets of accounts as you like. For a US company, the SEC tabs cover its overview, filings, events, insiders, major holders and a network of insiders.
Keep notes in your browser, trace data back to the accounts, and export CSV, XLSX or xBRL-JSON.
Reading the filing
Colours and underline styles distinguish different kinds of iXBRL content. They do not tell you whether a tag is standard or company-specific.
A tag with a linked footnote keeps its usual style and also shows a † marker.
Data screen
Switch between a sortable data table, the original filing, xBRL-JSON and the data prepared for AI questions. The table includes tagged figures and text, plus figures Graffiti found in untagged tables. Search or filter by kind of data, tag type, period, section and more. You can copy or export exact values.
Graffiti checks the iXBRL structure and applicable UK filing rules in your browser. When the filing's taxonomy and linkbase resources load, Graffiti can also check dimensions, calculations and other filing requirements. These include applicable XBRL 2.1 and Dimensions 1.0 checks, XBRL 2.1 and Calculations 1.1 roll-up checks, IFRS sign and formula checks, and ESEF anchoring checks. Loading those files may require network requests. Findings are sorted by severity and link to the relevant tag in the accounts where one is available.
Inspect calculation relationships and move between tags, continuations and footnotes without manually searching the page.
Review and AI
Validation checks the filing's structure and rules. Review flags figures and patterns that may need investigation. These checks run without AI: results from the accounts appear first, followed by any available Companies House checks. Ratio findings show the calculation, and you can ask AI to explain a finding.
Review looks at ratios, year-on-year movements, earnings against cash, balance sheet consistency, round numbers and tagging coverage. It also checks Companies House for matters such as overdue filings, charges and insolvency. A digit-pattern check based on Benford's law can suggest where to look more closely; it is not evidence of a problem by itself.
Ask for a company review, going concern review, ownership analysis or anomaly report. These reports draw on the findings above and Companies House or SEC data where available. On paid plans, AI can also use live web search for context from standards, sector benchmarks, company websites or recent news.
Privacy and access
Your browser opens a local filing or report package without uploading the original file to Graffiti. If you use an AI feature, your question and extracted filing content pass through Graffiti's service to OpenAI. That includes tagged data from a local file and, on paid plans with Full text enabled, relevant passages from the accounts. Notes stay in your browser and are not included. Do not use hosted features to submit sensitive personal data, proprietary information or anything you do not have the right to share.
Choose dark or light mode, navigate with the keyboard and follow visible focus indicators. Highlights use underline styles as well as colour.
Graffiti runs only our own code in your browser: no outside libraries, scripts, fonts or trackers. Validation, review checks, tables, ratios and trends run on your machine. Only AI questions (with the filing content they need), Companies House and SEC lookups, and filings and taxonomies fetched from the web go through our service.
Notes are stored with the document in your browser on that device. Use Backup in the Notes bar to download an annotated copy before moving or renaming a file, or clearing browser storage. Anyone using the same browser profile can read stored notes.
Glossary
Find more terms under Help in Graffiti. You can also hover over field headings in the tag panel for definitions.
core:TurnoverRevenue, ifrs-full:Revenue. Concepts usually have a readable label and can have an accounting-standard reference.Try Graffiti
Browse Companies House and SEC filings free, or choose a plan for more AI questions, full company records and a bookmarklet for filings on other websites.