Word Online Comparison Discontinued: How to Handle Citation Self-Checks?

As an author who frequently deals with citations and text workflows, I spent the last few days trying to decouple citation checking from Word buttons and turn it into a manual workflow. The trigger was Microsoft announcing that the Similarity Checker in Word will be discontinued on October 3, 2026. Simply put, it's a button in Word that helps you search online for similar text based on your sentences. It relied on Bing's text comparison via internet connectivity, potentially affecting student citations and teacher plagiarism checks.

According to reports, the feature launched in July 2020, and Microsoft officially announced its discontinuation on October 3, 2026.

Tools disappear, but citation management cannot be outsourced to a single button. When writing papers, I care more about whether sources are traceable, recording the origin of every sentence.

The following workflow is suitable for paper drafts and course reports.

First, slice the text in Word. Open the document, select the body text, press Ctrl+F to search for words like "therefore," "indicates," or "data shows," and pick out nearby sentences. Categorize them into opinion statements, data statements, definitions, and paraphrases. Pick 5 to 10 sentences from each category. Expected result: You'll have a list of short sentences.

Create key sentence cards. Copy sentences into a new text file, keeping only unique phrases of 15 to 25 characters. Delete "I believe" or "thus it can be seen." Expected result: Each sentence has a searchable core keyword.

Manual search comparison. Open a browser, type "key phrase" into the Bing search box, and hit Enter. Check if the results page contains content with a very similar sentence order. If yes, open the page and record the title, author, and publication time. Expected result: You can distinguish common phrasing from suspected sources.

Build a source ledger. A source ledger is a table recording origins. Create a new table with headers: Original Sentence, Source, Source Date, Usage Type. Fill in the recorded info. Usage Type has only three options: Direct Quote, Indirect Paraphrase, Background Reference. Expected result: Every sentence traces back to a source.

Add citations back in Word. Select the sentence, click the References tab, choose Insert Footnote (the small text at the bottom of the page), and enter source info. For direct quotes, add quotation marks in the body. Expected result: Numbers and sources appear at the bottom of the document.

Reverse check. Look only at the source ledger, not the body text, and ask yourself if a stranger could find the original text using this table. If not, delete it or add the source.

Pitfall warnings: Don't throw long paragraphs into the search box; phrases too long yield empty results. Solution: Shorten to 15-25 characters. Don't just record web page titles; pages may change or be deleted. Solution: Screenshot key paragraphs and record access dates. Don't equate similarity with plagiarism immediately; the same fact can be expressed differently. Solution: Check if sources are independent, then see if attribution is noted.

This approach has a low barrier to entry; no need to wait for Microsoft's button or extra accounts. Teachers, editors, and readers can follow the source table to find originals. Word, Feishu, Docs, and Markdown can all use the same table. Regardless of which model is integrated later, the source table remains useful.

The downsides are obvious. For an 8,000-character draft, my tests show careful execution takes about one to two hours. Judging the boundary between paraphrasing and plagiarism requires human input. Some people pile on irrelevant citations just to fill the table, creating false precision. Purely manual review gets overwhelmed by volume and isn't suitable for large-scale assignments.

Plagiarism checking breaks down into three things: finding similar sentences, confirming sources, and adding citations. Tools can only help with the first one.

The second and third must leave a trail. A common practice in overseas universities is having students build literature management tables, with teachers reviewing citation chains. The landing point of this workflow is verifiable citation habits.

If you're submitting tomorrow, I suggest doing the minimal version: pick 10 key sentences, build a 4-column source table, and add 10 sources. Once the source table is built, removing Microsoft's button won't affect your ability to continue checking origins.