Clarity for every word you submit.
Check any document for AI-generated content and similarity, follow live progress in a private workspace, and download clean PDF reports — before it ever leaves your hands.
Pay only for the check you need.
Every new account starts with zero credits. Redeem a one-time code, then choose your report — credits are only spent when a check is accepted.
Similarity only
A focused plagiarism and similarity report with matched sources.
- Similarity percentage & matched sources
- Downloadable similarity PDF
- Exclude quotes, bibliography & citations
AI + Similarity
The full picture — AI-content detection and similarity in one pass.
- Everything in Similarity only
- AI-content detection with its own PDF
- Both reports in your private dashboard
Less uncertainty. More useful evidence.
The important parts of document checking, brought into one calm and understandable experience.
Choose your analysis
Run Similarity only for 0.5 credit, or the full AI + Similarity report for 1 — you decide per document.
Credential-safe by design
Uploads pass through a protected server endpoint. Your access token never touches page code or browser storage.
Live processing updates
Your dashboard follows validation and analysis automatically, refreshing status every few seconds.
Reports you can actually use
Download every report in your selected check from the private dashboard during a five-day window.
From file to findings in three steps.
Redeem & upload
Add credits with a valid one-time code, then select an eligible English document.
Follow the analysis
Your private dashboard refreshes processing status automatically — no refreshing, no guessing.
Download your reports
Get the similarity report and, when selected, the separate AI-content report as clean PDFs.
Your document deserves careful handling.
TrueSimilarity limits what's exposed in the browser, validates every incoming file, and routes analysis requests through its own server.
- Token isolationIntegration credentials stay server-side.
- Validated uploadsFile type and size are checked before submission.
- Account-bound reportsEvery document is tied to your account, and expires after five days.
Before you submit.
Which file types can I upload?
PDF, DOCX and TXT files up to 25 MB, in English, with at least 20 readable words.
How long does processing take?
Checks are designed to finish quickly, but timing can vary with file length and service demand. Your dashboard follows live status throughout.
How do document credits work?
Similarity only costs 0.5 credit and AI + Similarity costs 1 credit. A credit is reserved on upload and only captured when the check is accepted.
How long are my reports available?
Reports and the original file stay in your private workspace for five days, then are automatically removed.
Is TrueSimilarity affiliated with Turnitin?
No. TrueSimilarity is an independent service and is not affiliated with Turnitin LLC.