Lorem Ipsum vs Real Content: When Filler Text Misleads a Design Review

Every mockup filled with Lorem Ipsum looks finished. The line lengths are even, nothing overflows, and no headline runs to three lines. That smoothness is the problem: filler text is uniformly average, and real content never is. This guide covers what Lorem Ipsum hides during a design review, when placeholder text is still the right call, and how to stress-test a layout before production does it for you.

#TL;DR

• Lorem Ipsum is fine for structure reviews, wrong for sign-off and usability testing.
• Filler has no long compounds, no URLs, no empty states, no missing values.
• Translated UI strings often run 130–300% of the English source length.
• Design against your longest real title first; the average case then costs nothing.
• Keep filler for body copy; use real words for buttons, labels and errors.

#Why you should not use Lorem Ipsum in a design review

There is a specific moment where filler text stops being a shortcut and starts being a liability: the moment someone is asked to approve the screen.

#Reviewers cannot evaluate what they cannot read

A stakeholder looking at a card grid full of Latin cannot tell you whether the card communicates the offer, whether the heading answers the question the visitor arrived with, or whether the call to action is obvious. So they comment on what they can evaluate — the colour of the button, the size of the gap, the choice of photo. You get a design review about aesthetics when you needed one about content, and you will pay for that in a second round later.

Nielsen Norman Group makes the same point about prototypes in its short piece on fake copy in UI prototypes: placeholders are convenient early on, but they cause problems once the real content turns out to have different characteristics from the filler.

#Filler text is uniformly average, and nothing else is

This is the mechanical reason Lorem Ipsum flatters a layout. Latin filler has:

• Word lengths clustered in a narrow band, with no 28-character compound nouns
• No URLs, email addresses, SKUs, or unbreakable identifiers
• No ALL-CAPS acronyms sitting next to lowercase text
• No numerals, currency symbols, or right-to-left runs
• No zero-item, one-item, or fifty-item variants — a paragraph is always a paragraph

Real content has all of these, usually on the same screen. A layout tuned against filler is tuned against a distribution that does not exist.

#The "looks good, let's build it" trap

The A List Apart team behind priority guides describe a familiar failure: no matter how loudly you label something a draft, a tidy-looking artefact reads as finished. Filler text amplifies this, because the one visible signal that content work remains — messy, uneven, real words — has been sanded off. The screen looks done, so the conversation moves on, and the content decisions get made much later by whoever happens to be typing into the CMS.

#When should you use Lorem Ipsum instead of real content?

Filler is a tool, not a sin. The question is which stage of fidelity you are at, and which elements are on the screen.

#Match the filler to the fidelity stage

#Interface text is never filler

Split the screen into two categories. Body content — paragraphs, article text, descriptions — can carry filler for longer than people admit, because the design question there is genuinely about rhythm, measure, and line height. Interface text — buttons, tab labels, form labels, validation messages, empty states, confirmation dialogs — should be real from the first draft, because the words are the functionality. A button labelled "Lorem" tells you nothing about whether the label fits, reads clearly, or survives translation.

#How much Lorem Ipsum does a mockup actually need

Enough to reach the realistic maximum, and then a little more. If your product descriptions run 40–90 words in the CMS, generate a 90-word block and a 140-word block, not the default five paragraphs. Generating filler by paragraph count is the habit that produces suspiciously tidy mockups; generating to a target length is what tells you something. The Lorem Ipsum generator lets you pull a specific number of words or paragraphs, and pasting the result into a word and character counter confirms you actually hit the length your real content will occupy.

#How to test a layout with long text before production does

Long strings are the single most common way a component fails on contact with real data — and the easiest to simulate.

#Text expansion in translation: the numbers

If your interface will ever be localised, the English source is the short version. The W3C's reference on text size in translation reproduces IBM's expansion guidance, and the pattern is counter-intuitive: short strings expand the most, because there is less room for a translation to average out.

The practical reading: a three-character tab label is the most dangerous element on the screen, not the safest. The same W3C article notes that German, Dutch and Finnish build single long compound words where English uses a phrase, so "Input processing features" can arrive as one unbreakable 30-character token that will not wrap at all.

#CSS that survives a string you did not expect

Two defensive patterns cover most of it. Truncation with a visible ellipsis, per the MDN reference on text-overflow, needs all three declarations to work:

.card-title {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

For multi-line clamping, and for the flexbox trap where a long child refuses to shrink:

.card-body {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

/* flex children default to min-width:auto,
   which blocks shrinking below content size */
.flex-item {
  min-width: 0;
}

#Generating stress-test strings in one line

You do not need a library for this. In the browser console, on the page you are reviewing:

// longest existing title on the page
const titles = [...document.querySelectorAll('.card h3')]
  .map(el => el.textContent.trim());
console.log(titles.sort((a, b) =>
  b.length - a.length)[0]);

// simulate ~180% German-style expansion
const stretch = (s) =>
  s.split(' ')
   .map(w => w + w.toLowerCase())
   .join(' ');

Paste the stretched string back into the heading and watch what breaks. It takes about thirty seconds and finds more layout bugs than an hour of re-reading the CSS.

#Design with difficult data, not just real data

Real content is a floor, not a ceiling. In Design with Difficult Data, Steven Garrity argues for going one step past realistic: dig through the actual data set, find the worst cases, and design against those. If the extremes hold, the median is free.

#The four places filler always lies

• Names and titles. Pick the longest surname and the longest product title in your database, not "Jane Doe".
• Avatars and thumbnails. Real users upload wide company logos, screenshots with their own text, and nothing at all. Test the empty state and the wrong-aspect-ratio state; an image cropper is useful for producing deliberately awkward source images to throw at the component.
• List counts. Design zero, one, and fifty. A tag row with three tags and a tag row with twenty-five are different components wearing the same name.
• Missing fields. Optional means absent. What does the profile card look like with no job title and no location?

#Sometimes you fix the data, not the design

Garrity describes reviewing a client's full archive and finding titles from 8 to over 320 characters — but only a handful above 80. Rather than build a layout that gracefully handles 320 characters nobody needs, they designed for 80 and edited the outliers down. The outlier titles came out better. Robustness is not the same as accommodating everything; sometimes the correct output of a difficult-data exercise is a content style guide with a hard character budget in it.

#Show the client the ugly version

A useful review habit: present the layout with ideal content first, then immediately show it with the worst content you could find. It sets expectations honestly, it demonstrates that a static screenshot is not the whole job, and it prevents the disappointing reveal three weeks later when real copy lands and the header wraps.

#A practical filler-to-real workflow

Here is the sequence that keeps filler useful without letting it mislead anyone:

1. Sketch with filler. Structure only. Nobody reviews this but you.
2. Write real headings and labels immediately. Every heading, button and tab gets real words, even bad ones. Bad real words start a useful argument; Latin starts none.
3. Generate filler to a measured length. Match the word count your CMS actually produces, plus a 1.5× variant for the long tail.
4. Build a difficult-data set. Longest title, empty avatar, zero-item list, fifty-item list, one untranslated compound noun.
5. Review both versions side by side. Ideal, then difficult. Do not show only one.
6. Strip filler before sign-off. Any Lorem Ipsum surviving into a stakeholder deck is a question you have not answered yet.

The rule of thumb: filler answers "does this shape work?" Real content answers "does this screen work?" Only one of those questions is worth a stakeholder's hour.

#References

• A Downside of Fake Copy in UI Prototypes — NN/g summary of why placeholder copy causes problems when real content differs in character.
• Design with Difficult Data — Steven Garrity's argument for designing against extremes; source for the 8-to-320-character title example.
• Priority Guides: A Content-First Alternative to Wireframes — content-first review process and the "looks final" problem with tidy artefacts.
• Text size in translation — W3C internationalization reference; source for the IBM expansion ratios and compound-noun wrapping issues.
• text-overflow — CSS — MDN reference used for the truncation snippet.

#Related on iKit

• Lorem Ipsum in 2026: a practical guide for designers and devs — the companion overview: what filler is for, how much a mockup needs, and the generator options.
• Where Lorem Ipsum actually comes from — the Cicero-to-Letraset paper trail behind the passage everyone pastes.
• Counting words in a translation pair correctly — practical follow-on if the expansion ratios above apply to your product.
• Live word and character counts in the browser — how to measure the length your real content will actually occupy.