🌙 Happy Karwa Chauth from IsolatedStudy! Check your work with confidence – plans from $3
IsolatedStudySimilarity Check
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🌙 Happy Karwa Chauth!

Find copied text in seconds, not hours.

Upload any document and IsolatedStudy compares it against the web, academic databases and previously submitted work – then shows you exactly which passages match.

  • Free account – just your email, your reports stay private
  • PDF, Word, PowerPoint, scans, code & 20+ formats
  • Highlights on your own file, a score and a grade
  • Finds paraphrasing, translation and fake references
14online sources
20+file formats
∞words per check
See sample reportsClassic, Modern and Certificate – how your PDF will look

Check your document

Free

In Google, choose Share → General access → “Anyone with the link” first. The file is downloaded and checked like an upload (as Word, Excel or PowerPoint).

0 words
Submit paper to
More checks (optional)

Optional – tick the extra checks you want. Without them the report is the normal similarity report.

Free account: documents up to 5,000 words · plans check any length.

Only you can see your report.

One free check per person

Try it free: check 300 words now

Paste a paragraph, add your email (we make your free account) and see your similarity score with the matching passages in about a minute.

or upload a file (first 300 words)
14web & research sources searched at once
20+file types – even scans, pictures & code
3PDF report designs
8optional extra checks
How it works

Four steps to an originality report

1

Give your email

No separate sign-up: enter your email and a password with the upload. Only you – and your instructor, if you join a class – can see your reports.

2

Upload

Any file: PDF, Word, PowerPoint, Excel, scans, pictures, code – or paste text. Tick extra checks if you like.

3

We search

Your text is fingerprinted and compared with web pages, research papers and earlier student papers – all at once.

4

Get the report

Matches highlighted on your own file, a score and grade, filters, and a PDF in three designs to download.

The report

See exactly what matches – and where it came from

Colour-coded highlights, a match overview per source, side-by-side comparison and Turnitin-style filters for quotes, bibliography and small matches.

  • Similarity score with A–D grade
  • Internet, publication and student-paper breakdown
  • Downloadable PDF report & digital receipt
Sample reports

See how your report looks – before you upload

The same check, downloaded in each of the three PDF designs. Your own file is kept exactly as it is – fonts, tables, charts – with only the coloured highlights and numbered sources added.

Classic

A formal integrity report: cover page, match overview, your highlighted document and the source list.

Open sample PDF

Modern

A colourful design with a score ring, charts, source tiles and a QR code to verify the report.

Open sample PDF

Certificate

A framed certificate with grade, seal and QR code – ideal to hand in with your work.

Open sample PDF

Sample essay “The Impact of Climate Change on Agriculture” – 34.6% similarity, 3 sources. You choose the design when you download.

Pricing

Simple plans – pay once, no subscription

Every plan has every feature. Pay by card, PayPal, crypto, UPI or bank transfer.

Prices in

Check your own work before you submit it.

Starter

One assignment and its drafts

$3for 15 days
5 checks ≈ $0.60 per check
Get Starter

Thesis

Long papers, theses and many drafts

$19for 365 days
60 checks ≈ $0.32 per check
Get Thesis
UPI RuPay PayPal Mastercard Bitcoin USDT Starts right away Compare all plans
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IsolatedStudy compared with Turnitin and DrillBit

The same kind of similarity report – but you can buy it yourself, pay the way you like and start in minutes.

Feature IsolatedStudy
Buy it yourself – no university or school account needed Institutions onlyMainly institutions
Prices shown openly on the website Quote on requestQuote on request
Pay per plan – no yearly contract Yearly licenceYearly licence
Pay with UPI, card, PayPal or crypto Invoice to institutionInvoice to institution
Check your own draft as often as your plan allows If your institution allowsIf your institution allows
Similarity report with highlighted matches
AI-writing indicator
Report authenticity check (Submission ID + QR code) ––
3 PDF report designs to choose from ––
Developer API with your own keys Through integrationsOn request
Support by chat, WhatsApp and Telegram Through your institutionEmail / phone

Based on publicly available information; offers of other companies can change – check with them for current details. Turnitin and DrillBit are trademarks of their owners. IsolatedStudy is not affiliated with them.

Why it is different

More than a similarity percentage

A percentage tells you how much matches. These checks tell you what is wrong, why, and how to fix it.

Your file, not a text copy

The report shows your own document page by page – same fonts, tables, code and pictures – with the highlights painted on.

Catches made-up references

Each reference is looked up in Crossref, OpenAlex and Google Books. References that do not exist – common with AI tools – are flagged.

Finds translated and reworded copying

Sentences are compared by meaning, so paraphrased text and text translated from another language are found too.

Tells you how to fix it

A ready-made APA citation for every source, missing in-text citations, and your progress since your last check.

Cheating tricks don't work

Look-alike letters, invisible characters, white or tiny hidden text and s p a c e d words are found and undone before matching.

Reports that can be verified

Every report has a Submission ID and QR code. Anyone can confirm online that it is genuine – without seeing your text.

Word count you can trust

Words are counted the way Microsoft Word counts them – for Word files and PDFs alike.

Code and pictures too

Program code is compared by its structure, and reused figures are found even when resized.

IsolatedStudy compared with Turnitin and DrillBit
FeatureIsolatedStudyTurnitinDrillBit
Similarity report with highlighted matches and sources YesYesYes
AI-writing indicator YesYesYes
Report shown on your original file layout YesYesNot listed
Hidden-text and look-alike-letter flags YesYesNot listed
Text translated from another language YesYesNot listed
Paraphrasing found by meaning in the similarity score YesPartlyNot listed
Made-up or wrong references checked YesNot listedNot listed
How-to-fix help with ready-made APA citations YesNot listedNot listed
Public verification page with Submission ID and QR code YesNot listedNot listed
Program code compared by structure YesPartlyNot listed
Students can sign up and check on their own YesNoNot listed
Free plan to start YesNoNot listed
Keep your data on your own computer or server YesNoNot listed

available · Partly limited or a separate product · not offered · Not listed not found in their public product information. Based on public information as of 2026; features vary by plan and institution. Turnitin® and DrillBit are trademarks of their respective owners; IsolatedStudy is not affiliated with them.

Features

Everything a professional similarity check needs – and more

Turnitin-style reports, plus checks that catch what a similarity score alone misses.

Finds every kind of copying

Internet & research databases

Distinctive sentences are searched on many web engines and research databases at once (OpenAlex, Crossref, arXiv, PubMed, CORE, DOAJ …) – open-access full texts included.

Student papers

Every stored paper is compared with later ones – a copy of a classmate's or last year's paper is found, even weeks later.

Paraphrase detection

Sentences are compared by meaning, so reworded text is caught, not just exact copies.

Translated copying extra

Finds sentences translated from documents in other languages – e.g. Hindi or Spanish into English.

Program code extra

Compares code by its structure, so renamed variables and changed comments do not hide copying.

Reused pictures extra

Figures and photos reused from other saved papers are found, even when resized. Logos are ignored.

AI-writing detection

Shows how much of the text is likely written by AI tools (with a detection provider set up).

Cheating tricks

Look-alike letters from other alphabets, invisible characters, s p a c e d letters and white or tiny hidden text are flagged – and neutralised before matching.

Reports you can trust

Your file, unchanged

The PDF report shows your own document – same fonts, tables, pictures and code – with only the highlights and numbered sources added.

Three PDF designs

Download as Classic integrity report, a colourful Modern report with charts, or a framed Certificate with grade and seal.

Smart filters

Exclude quotes, the bibliography, cited text or small matches; remove a source with one click and add it back any time.

Side-by-side & match groups

Compare your text with any source; see what is not cited, missing quotation marks or properly cited.

Word count like Microsoft Word

Words are counted exactly as Word does – for Word files, PDFs, text and more.

Verify any report

Every report has a Submission ID and QR code. Anyone can check online that it is genuine and when it was created.

Digital receipt

A printable certificate with the submission ID, date and a SHA-256 fingerprint of the text.

Helps writers fix their work

Reference check extra

Every reference is looked up in Crossref, OpenAlex and Google Books – made-up or wrong references (often from AI tools) are flagged.

Citation check extra

In-text citations missing from the reference list, and references that are never cited.

How to fix extra

A ready-made APA citation for each source to copy, and your progress since the last check.

Writing-style check extra

Compares the writing style with the writer's earlier papers – a hint for ghost-written work.

Own earlier work extra

Text reused from your own earlier papers is listed apart and not counted in the score.

Grammar & spelling

Grammar and spelling suggestions for the whole document.

For teachers & institutions

Classes & assignments

Class codes, due dates, resubmissions, bulk upload, submission comparison, rubrics, grades and feedback, CSV export.

Dashboards with charts

Checks per day, grades, similarity by assignment and where matches come from – for admins, instructors and students.

API for your systems

Connect Moodle or your website: send documents, get scores, words, issues and the PDF in any design as JSON.

Your storage, your choice

Keep data on this computer or an external hard disk, in MongoDB, or both – with several MongoDB accounts filled one after another.

Never lose a check

A fair queue for busy moments; checks continue after a restart and reuse finished work when a file is sent again.

Any file, any size

PDF (even scanned), Word, PowerPoint, Excel, OpenDocument, RTF, HTML, EPUB, pictures (OCR), code and text in any language.

Organizations & allowances

Give a school or company a number of checks per day, month or year; its administrator shares them with instructors, instructors with students – and everyone sees who used how many.

Security & spam protection

Bot traps on every public form, lock-out after wrong passwords, limits on new accounts, throw-away emails refused and safe browser settings.

Checks marked extra are optional – tick them under “More checks” when you upload.

Verify a report

Got a report? Check that it is genuine.

Enter the Submission ID printed on every page – or scan the report's QR code.

FAQ

Questions, answered

Do I need an account?

Yes – a free account, so nobody else can see your reports. You don't have to sign up first: enter your email and a password when you upload and the account is made for you. A class code is optional.

Which report formats can I download?

59 PDF designs in 8 styles – Classic, Modern, Certificate, Academic, Minimal, Executive, Infographic and Official letter – each in several colours. All show your original file with the matches highlighted.

How can someone check that my report is genuine?

Every page shows a Submission ID and the report has a QR code. On the Verify page anyone can enter the ID and see when the report was created and its score – never your text.

Is the word count the same as in Microsoft Word?

Yes. Word files are counted by Word itself; PDFs and other files with Word's rules (headers, footers and page numbers are left out).

Which files can I upload?

PDF (including scanned PDFs with OCR), DOC, DOCX, ODT, RTF, PPTX, XLSX, ODP, ODS, HTML, EPUB, TXT, Markdown, CSV, source code and images. There is no size or word limit.

What does the similarity percentage mean?

It is the share of your words that match other sources. Quotes and the bibliography are excluded by default. A–D grades: A ≤ 10%, B ≤ 40%, C ≤ 60%, D above 60%.

Is my document private?

Reports can only be opened by registered users who are logged in – you see your own reports, your instructor sees your class's. You choose: Standard repository stores your paper so later copies of it are detected; No repository checks it without storing it.

Can our school decide how many checks each teacher and student gets?

Yes. Your organization gets an allowance – a number of checks per day, month or year. Its administrator shares it with instructors and instructors with their students; nobody can give away more than they have. Everyone sees who used how many checks, and can search, filter and export the list.

Is the score the same if I upload the same file again?

Yes. When you check the very same file again, your own earlier copy is not counted as a source – so the percentage only changes if new matching sources were found. If someone else hands in the same text, it is still found.

How is my account protected?

Passwords are stored encrypted, every form is protected against forged requests and bots, and after several wrong passwords the login is locked for 15 minutes.

How do I pay, and when does my plan start?

Choose a plan, enter your email, and pay by PayPal or card, crypto, UPI or bank transfer. Card and crypto plans start automatically; UPI and bank payments are checked by our team, usually within a few hours. We email you a link to set your password – no account needed before.

Can I protect my account with a code?

Yes. Turn on 2-step login in your account menu: after your password, you enter a 6-digit code that we email to you.

Does it detect paraphrasing?

Yes, when paraphrase detection is enabled: sentences are compared by meaning, so reworded and translated text is flagged too.

Ready to check your document?

Upload now – just add your email, your free account is made on the way.

Upload a document

Questions? +91 73026 93676 isolatedinfo@isolatedstudy.com

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