Field workbench
Reading lab
Paste a passage, mark what it is doing, and let the lab turn your marks into notes. Select text with the mouse, a finger or the keyboard, tag it as a claim, an assumption, a definition, a piece of evidence or a question, and build a summary you can export. Your text and your notes are stored only in this browser.
Paste your passage
Mark the passage
Nothing selected yet. Select a passage in the text below, or focus the text and use the arrow keys.
The reader is empty. Paste a passage above and choose “Open in the reader”, or load the sample passage to try the tags first.
Mouse or touch: select any stretch of text, then choose a tag. Keyboard: focus the text, press Down or Up to move by sentence, hold Shift to extend, then press 1 to 5 for Claim, Assumption, Definition, Evidence or Question. Escape clears the selection.
Build your summary
Preview
Field notes on the tool
How it works, and where it stops
The five tags
- Claim
- Something the author wants you to accept: a finding, a prediction, a recommendation.
- Assumption
- Something the argument needs to be true but may not prove, stated or not.
- Definition
- A term pinned to a meaning. Collect them; they make a glossary.
- Evidence
- Data, examples, citations or reasoning offered in support of a claim.
- Question
- Anything you do not understand or do not yet believe. Questions are results.
Assumptions and edge cases
- Passages may overlap. A sentence can be a claim and also hold a definition; tag it twice. The newest tag is drawn on top, and every tag appears in the list.
- Sentences are split at full stops, question marks and exclamation marks followed by a space. Abbreviations such as “e.g.” can cause an early split; use the mouse to select across them.
- Plain text only. Formatting, images, tables and equations do not survive pasting. Describe them in a note instead.
- If you edit the text after tagging, your tags are cleared, because they point at positions in the old text. The lab asks first.
- Notes are saved in this browser’s local storage. If storage is blocked or you are in a private window, the lab still works but forgets everything when you close the tab. Download a backup if the notes matter.
- Exports are generated on your device. Nothing is uploaded.
Using it well
- Do not tag everything. If more than a third of the text is highlighted, you have stopped choosing.
- Tag a claim, then look for its evidence. The gap check beside your list will point out claims that have nothing marked beneath them.
- Use the sample passage first. It is invented, short, and contains all five kinds of sentence.
- Pair this with the 30 questions: save a few, then use them as the Question notes.