Overview
Sum it up: select a passage for a sketch, or a term for a plain-English definition.
Highlight it. Understand it. SummitUp turns dense writing into a simple sketch and two clear sentences. Select a paragraph on any web page, click the pill, and get a hand-drawn diagram of what it actually means, plus an explanation short enough to remember. Select a single word instead and you get a definition, read in context. "Parameters" means learned weights in a machine-learning paper and function arguments in a Python tutorial. SummitUp reads the surrounding sentence and answers for the page you're on. Built for people learning something hard • Sketches that carry meaning, parts, sequences, cause and effect, comparisons. Not decoration. • Two sentences, 35 words, a hard ceiling, because an explanation you can't remember hasn't explained anything. • 148 built-in terms covering machine learning and API documentation, answered instantly and offline. • Knows when not to draw. If a passage has no structure worth diagramming, you get the explanation alone rather than three meaningless boxes. • Explain-only mode for when you just want the words. You bring the key SummitUp has no server and no subscription. You add your own API key from Anthropic, OpenAI or Moonshot, it stays in your browser, and you pay your provider directly — typically well under a cent per use. Nothing is sent anywhere except the text you select, to the provider you chose. Requires an API key from Anthropic, OpenAI, or Moonshot (Kimi). Without one, only the offline dictionary works.
Details
- Version2.2.0
- UpdatedAugust 10, 2026
- Offered bypoojamhptr
- Size125KiB
- LanguagesEnglish (United States)
- DeveloperPooja Mahapatra
Flat 5, Chesterfield house 41 hamilton road London W52EE GBEmail
poojamhptr@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
SummitUp has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
SummitUp handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
