DiffFind
DiffFind is an independently built AI document and text comparison project that combines deterministic diffing with optional AI-powered semantic analysis. It is designed to show exact changes and help users understand whether the meaning, severity, or impact changed across text, documents, PDFs, spreadsheets, structured data, and API content.
At a Glance
- Business users
- Software developers and API teams
- Legal professionals
- Researchers
- +2 more
AI Tools by DiffFind
(1)
DiffFind
Text and Document Diff Tool
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Latest News
DiffFind launched on DevHunt and was ranked #2 Product of the Week.
DevHunt published a product summary describing DiffFind's multi-format comparison, semantic analysis, REST API, cURL, and agent-ready capabilities.
DiffFind was reported as released as a semantic search and diff tool for text and documents.
Stephen Ince introduced DiffFind on Hacker News, explaining its combination of lexical diffing, semantic search, semantic comparison, LLM reranking/extraction, PDF support, and REST API.
Products & Services
Browser-based document and text comparison platform with deterministic lexical comparison, optional AI semantic analysis, semantic document search, and support for text, JSON, YAML, XML, CSV, PDF, Word, Excel, URLs, cURL commands, and API requests/responses.
Programmatic API for comparisons and related operations, including POST /v1/compare, semantic search via POST /v1/find, URL/cURL loading via POST /v1/load, formatting via POST /v1/format, source-line mapping via POST /v1/locate, and a health endpoint.
Optional Chrome extension that opens DiffFind in a dedicated app-style window, restores and focuses an existing window, and can be configured for a self-hosted DiffFind instance.
Market Position
DiffFind positions itself against traditional lexical diff and search tools, including the class of products represented by Diffchecker, by preserving exact deterministic evidence while adding optional semantic analysis and meaning-based search. Its differentiation is breadth of formats (documents, PDFs, spreadsheets, structured data, URLs, and API content), a browser-first workflow, and automation through REST, cURL, and agent-ready functions.
Leadership
Founders
Stephen Ince
Independent software engineer and solo creator of DiffFind. He says he built the application, API, deployment, and public website himself; his public Hacker News account is stephenpince.
Executive Team
Stephen Ince
Founder and maker
Independent software engineer who says he built DiffFind end-to-end, including the application, API, deployment, and public website.
Founding Story
Stephen Ince says he repeatedly encountered a limitation of traditional diff and search tools: they are good at matching exact text but can miss meaning when wording changes. He created DiffFind to combine traditional lexical/deterministic comparison with semantic search and semantic comparison, initially to answer not only what text changed but what changed semantically and where a document discusses a concept using different words.
Business Model
Revenue Model
The hosted product is publicly listed as Free on DevHunt, while third-party launch coverage describes it as freemium. The public website and documentation do not publish paid tiers or usage pricing; the product also offers a REST API and a self-hosted deployment option.
Target Markets
- Business users
- Software developers and API teams
- Legal professionals
- Researchers
- Power users and technical teams
- Everyday users comparing drafts
- Reviewing contracts, invoices, leases, and policy documents for changed terms and figures
- Detecting breaking or material changes in API specifications, requests, responses, configuration, and structured data
- Validating data migrations by comparing CSV or JSON exports
- Automating document change detection in CI pipelines and developer workflows
- Comparing resume, email, article, and other everyday drafts
- Legal document review and research workflows