FastOCR
Online Formula OCR — Screenshot to LaTeX in Seconds
Upload or paste a formula screenshot or photo — handwriting or print — and get editable LaTeX in seconds, with live preview and one-click SVG/PNG export. No sign-up.
Why FastOCR
Four reasons to start now
Free, no sign-up — open your browser and begin
No sign-up
Open the page and start — no account, no email; history lives only in your browser.
Free
Free to use — no credits, no subscription, no paywall.
Convenient
Runs entirely in your browser — no downloads, no installs. Works on your phone, tablet, or computer.
Easy to check
Review and edit the recognized LaTeX, check the live preview, and make corrections before exporting.
About
Online formula recognition, built for math
FastOCR is a free online formula OCR tool that turns formula screenshots, photos, and scans into editable LaTeX. Both printed and handwritten formulas are recognized — from simple fractions to multiple integrals and matrices — with live rendering and instant editing.
No downloads, no account: it runs in your browser. Copy the LaTeX source, or export SVG and transparent PNG for papers, slides, and notes — a free alternative to paid formula OCR tools.
Use cases
For papers, notes, and problem sets
Whenever a paper formula needs to reach your screen
Papers & literature
Quote formulas from PDFs into your own LaTeX drafts without retyping.
Class & notes
Photograph the blackboard and drop the formula into Obsidian or Notion.
Homework & practice
Turn textbook formulas into LaTeX for asking and organizing.
Slides & documents
Export SVG or transparent PNG and place formulas cleanly in slides and Word.
Data & privacy
Your images don't stay long
Images are used only to complete recognition. Records are kept for 180 days by default and deleted automatically. History stays in your browser (last 50 entries) and can be cleared anytime.
180 days
Records auto-delete on expiry
50 entries
History stays in your browser only
FAQ
Good to know
Does it support handwritten formulas?
Yes. Both handwritten and printed formulas are recognized, covering common math notation — results are editable so you can tweak before export.
Is document recognition supported?
Formula recognition is live now; full-page document OCR (text and layout) is coming soon.
Are my images stored?
Images are used only to complete recognition, and run logs only for troubleshooting — auto-deleted after 180 days by default. Recognition history lives only in your browser.