Paste a paragraph into wordcounter.net and the count itself appears instantly — but so does a "20% off Grammarly Pro" banner, a prompt to sign in with Twitter, Facebook or Google if you want the document saved, and, per their own privacy policy, Google AdSense running underneath it all. None of that is sketchy or hidden; it's a free tool paying its bills the normal way. It's just a lot of interface for a task that's usually "how many words is this essay." Paste the same paragraph into our Word Counter and you get nine stats and a density table, updating as you type, with nothing to click through first.
Verdict: for a fast, one-off count, ours is the better fit — no account, no ads, live results, and a free API if you need counts in a script. For anything past that — a grade-level readability score, a keyword-density tool you can actually tune, a built-in grammar checker, saved documents with writing goals — wordcounter.net is a genuinely bigger tool, and we're not going to pretend a single-purpose counter matches it. This is a scope comparison, not a "we win everything" one.
Where the two actually differ
| WordCounter.net | iotools.cloud Word Counter | |
|---|---|---|
| Core counts (words, characters, sentences, paragraphs) | Yes, plus longest/shortest sentence length and a "Words (Publisher)" metric | Yes — words, unique words, characters (with/without spaces), sentences, paragraphs, syllables |
| Syllables | Not listed as a stat | Yes |
| Reading level / readability score | Yes — grade-level score via the Dale–Chall formula | No — out of scope for this tool |
| Keyword density | Yes — top 10, configurable to 1–3 word phrases, with a toggle to exclude common words | Yes — fixed top-10 single-word table, no phrase or stop-word controls |
| Reading / speaking time | Yes, plus a "handwriting time" estimate | Yes — 200 wpm reading, 130 wpm speaking |
| Grammar / spell check | Yes, plus a Grammarly upsell | No |
| Thesaurus, case converter, find-and-replace, text-to-speech | Yes, bundled in the same editor | No — one job, done in the browser |
| File upload | PDF, TXT, DOC, DOCX, ODT | Plain text files only (drag a .txt, get a raw read — no PDF/DOCX parsing) |
| Save documents / writing goals / Google Drive | Yes, requires an account | No accounts, nothing saved anywhere |
| Live update as you type | Yes | Yes |
| Embeddable | Yes (/embed) | Yes |
| API access | Not offered | Yes, free (0 credits) |
| Ads | Google AdSense, per their privacy policy | None — no ad network wired into the site |
| Sign-up required | No for counting; yes for saved documents | Never |
The split isn't "ours is missing features" so much as "theirs is a writing suite and ours is a counter." Reading level, tunable keyword density, grammar checking, a thesaurus, speech-to-text — those are real, useful things we don't build into this tool, and if you need them regularly, wordcounter.net is the right call. If what you actually do fifty times a week is check a word count without any of that overhead, ours is built for exactly that and nothing else.
If you've ever assumed "reading level" tools all run Flesch-Kincaid under the hood, wordcounter.net doesn't — their own blog post on the feature says it uses the Dale–Chall formula: a raw score of
0.1579 × (percentage of words outside the Dale–Chall 3,000-word list) + 0.0496 × (average sentence length) + 3.6365, mapped to a grade band (4.9 and under is "grade 4 and below," 10+ is "grade 16+"). It's measuring vocabulary difficulty against a fixed word list, not sentence complexity the way Flesch-Kincaid does — a text can score as "easy" under Dale–Chall while still reading as dense, if it just avoids words outside that list.
Keyword density: their tunability is the actual advantage, not just "they also have this"
Both tools show a top-10 density table, so at a glance this looks like parity. It isn't. WordCounter.net lets you switch between 1-, 2- and 3-word phrases and toggle whether common words ("the," "and," "a") count at all — which matters if you're checking an article for keyword stuffing and want the density of "content marketing" as a phrase, not the density of "content" and "marketing" as two unrelated entries. Our density table is fixed: single words only, no stop-word filter, top 10. For a quick "am I repeating one word too much" check it's fine. For actual on-page SEO density auditing across phrase lengths, theirs is the better tool and we're not going to dress up a fixed top-10 list as something it isn't.
File uploads: we read text, they read documents
Drop a .txt file on either tool and both work. Drop a .docx or a .pdf on wordcounter.net and it parses the document format and extracts the text. Drop the same .docx on our uploader and it reads the file as raw text — you'll get binary noise, not your paragraphs, because we never added a document-format parser. This is a real limitation if your source material lives in Word or PDF, not a subtle one: convert to plain text first, or use theirs.
Privacy: closer than you'd expect for the basic case
We say the counting happens entirely in your browser and your text never leaves your device — that's genuinely true for us, there's no server round-trip in the tool at all. WordCounter.net's own privacy policy says something similar for unregistered use: your text is "stored only in your own browser's storage" and is "not accessible to us on our servers." The real difference only shows up if you create an account — at that point, documents you explicitly save go to their servers, which is the whole point of the save/goals/Google-Drive features. So don't take "we're the private one" as a knock on them for basic counting; it's an accurate claim on both sides until you opt into their account features.
FAQ
Does wordcounter.net use Flesch-Kincaid for its reading level score?
No. Per their own blog explanation of the feature, it's the Dale–Chall formula — vocabulary difficulty measured against a 3,000-word list plus average sentence length, not the syllable-based calculation Flesch-Kincaid uses. If you specifically need a Flesch-Kincaid or Flesch Reading Ease score, wordcounter.net's built-in metric isn't computing that number, whatever the "reading level" label implies.
Can I check keyword density for multi-word phrases on iotools.cloud's word counter?
Not currently — our density table is single words only, top 10, with no phrase-length or stop-word controls. If you need 2- or 3-word phrase density with a common-words toggle, wordcounter.net's keyword tool does that today.
Does the iotools.cloud word counter work with Word or PDF files?
Only if you convert to plain text first. The uploader reads whatever you drop as raw text, so a .docx or .pdf won't be parsed — you'll get the file's raw bytes, not the document's content. WordCounter.net accepts PDF, DOC, DOCX and ODT natively.
Is there an API for word counting?
Yes, on our side — the Word Counter is API-enabled at zero credit cost, so you can get the same stats (words, characters, sentences, syllables, reading/speaking time, density) from a script instead of pasting into a browser tab. WordCounter.net doesn't expose an API for this in their public tool.
If your job is genuinely "count and go," skip the sign-in prompts and use the Word Counter — it's the same live-updating stats with no account and no ads. If your job is closer to "manage a long document with goals, grammar checking and saved drafts," wordcounter.net's extra surface area is there for a reason and we're not trying to replace it with a narrower tool.
Cover photo by Karola G via Pexels.