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TLDR Generator
A TL;DR generator condenses a long passage by extraction, not rewriting. It takes your text's opening sentence — which usually frames the topic — finds the longest sentence in the remainder by word count, and joins the two into a single "TL;DR:" line. Passages of one or two sentences are returned whole, prefixed with the label. Length is the selection heuristic, and it helps to know that going in: the longest sentence is often the most detailed one, but not always the most important, so a rambling aside can occasionally win the slot. The approach works best on structured writing — news, blog posts, reports — where openings orient the reader and substance clusters in fuller sentences. Bullet lists and transcripts, which lack clear topic sentences, summarize poorly; feed those a key paragraph instead. Use the result to triage what deserves a full read, or as raw material for the TL;DR line topping your own post — smooth the two stitched sentences into one before publishing. Everything runs in your browser.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Paste the long passage you want summarised.
- Click Generate to produce a TL;DR.
- Read the extracted gist.
- Tidy it into one smooth sentence in your own words.
Use Cases
- •Skimming a long article or report quickly
- •Drafting the TL;DR line for a post or thread
- •Triaging which documents need a full read
- •Summarising an email down to its gist
- •Adding a quick summary to the top of content
Tips
- →Works best on well-structured text with a clear opening.
- →Use it as a first draft, then polish the wording.
- →Add a TL;DR to the top of long posts to boost engagement.
- →For dense text, summarise section by section.
FAQ
how does it choose which sentences to keep
It always takes the first sentence, then scans the rest and adds the longest one by word count. Texts of one or two sentences are returned whole with the TL;DR label. Nothing is rewritten — the summary is the two sentences stitched together.
why did the summary pick an unimportant sentence
Because the second pick is chosen purely by length, and the longest sentence is not always the most important one. If a rambling aside wins the slot, trim the input to the section that matters or split long asides before running it again.
will the summary always read smoothly
Not always — it stitches two extracted sentences together, so the join can feel abrupt. Treat it as a strong gist and tidy it into one smooth sentence in your own voice before publishing.
is my text uploaded anywhere
No. The extraction runs entirely in your browser, so nothing you paste is sent to a server or stored. You can safely condense private or unpublished text.
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