About the lab.
AI Input Lab is built on a simple idea: the fastest way to better answers from AI isn't a better model — it's a better input.
Most files weren't designed for language models. PDFs carry headers and footers across every page. Auto-generated transcripts are crowded with timestamps and filler words. Webpages bury the content you care about under markup, ads, and scripts. When you paste that mess into ChatGPT, Claude, or Gemini, the model has to spend tokens — and attention — on noise instead of the question you actually asked.
The lab is a small, growing collection of focused utilities that fix exactly that. Drop in a PDF, a screenshot, a meeting recording, or a Word document, and get clean text out the other side — ready to paste into any chat or feed into a RAG pipeline.
Why browser-based?
Every tool here runs locally in your browser using WebAssembly versions of the same engines you'd run on a server: pdf.js for PDFs, Tesseract for OCR, ffmpeg for video, mammoth for Word documents. Your files never leave your device.
That matters for three reasons. It's faster — there's no upload round-trip. It's cheaper — there's no server bill, so the tools stay free. And it's private — contracts, medical records, draft manuscripts, internal meetings can be processed without trusting a third-party service to delete them later.
What's in the lab today
PDF to Clean Text
Extract clean, AI-ready text from any PDF.
Transcript Cleaner
Turn messy transcripts into readable prose.
Context Compressor
Shrink prompts. Keep meaning.
Markdown Converter
Convert anything to clean Markdown.
Screenshot to Text
OCR screenshots into AI-ready text.
Video to GIF for AI Vision
Trim and shrink clips into GIFs ready for AI vision models.
PDF to Markdown
Convert any PDF to clean Markdown.
Token Counter
Count tokens for ChatGPT, Claude, and Gemini.
Batch Document Extractor
Extract text from many documents at once.
Who's behind it?
AI Input Lab is run independently by a small team that uses these tools daily — for research, content workflows, customer support, and shipping software with AI-assisted pipelines. Every utility we publish is one we wanted ourselves.
If a tool is missing, broken, or could be better, the fastest way to tell us is the contact page. Suggestions shape what gets built next.
How we keep it free
The site is supported by unobtrusive display advertising and the occasional referral to AI tools we genuinely use. We don't sell data — we couldn't if we wanted to, since processing happens in your browser. See the privacy policy for details on cookies and third-party advertising partners.