Scribbr Paragraph Rewriter & Paraphraser · AI paraphrasing & rewriting
Scribbr integrates QuillBot's neural paraphrasing engine for sign-up-free English rewriting, completing a 5-sentence restructuring in 4.8s. It achieved 71.6% lexical diversity with 100.0% fact retention (all 7 crucial figures, dates, and verification token) and up to 125 words per guest run with direct copy and export.
US-West (California, AS16509)
TXT · Output attached · Open native file ↗
Subsequent pricing and service checks are shown separately without altering historical scores.
One run does not establish all complex scenes, untested paid maxima or long-term uptime.
Plans & historical pricing
Scribbr free sign-up-free tools and pay-per-check plagiarism report pricing model · 2026-10-31
Basic AI content detection and citation generation
Turnitin plagiarism check and AI content analysis
Academic plagiarism check for regular manuscripts and theses
Academic plagiarism check for extensive monographs and dissertations
4 plan / billing-period records, all listed; — means that period is not recorded.
AI detector and citation tools are 100% free with no sign-up; premium plagiarism check is billed per document without recurring subscription: Small $19.95, Regular $29.95, Large $39.95.
Cancellation, sources & verification record
Cancellation and refund terms unverified
Scribbr Plagiarism Checker & Pricing Page ↗ · 2026-10-31 Capture 1 ↗
Pricing recorded on the test date · 2026-11-06
Free guest use up to 125 words/run; Learneo/QuillBot premium packages available
free_and_ecosystem
Historical context only; not current purchase guidance.
Delivery & access
- Free delivery record
- 94-word high-quality paraphrased text via copy/export (750 bytes · zero truncation)
- Watermark
- Zero watermarks
- Free allowance
- Guest users can freely paraphrase texts up to 125 words per submission
- Account requirements
- Direct guest use without signup or login
- Maximum specification record
- 94-word high-quality paraphrased text via copy/export (750 bytes · zero truncation)
May include advertised capabilities; this does not establish a tested paid tier.
- Batch & API
- Not recorded or not verified
- Manual refinement
- Not recorded or not verified
Tested result & sample
Not recorded or not verified
- Fixture
- anchor_paraphrase_v1
- Recorded environment
- US-West (California, AS16509)
- Network-observed server wait
- 4.8 s
- End-to-end reference
- 4.9 s
Network wait includes round trips, queuing and polling error, not pure inference time. Local timings depend on the device; repetition counts are not standardized in legacy records.
Experience, rules & trust
- Disclosure
- Output displayed immediately alongside input comparison upon clicking Paraphrase
- Interaction
- Not recorded or not verified
- Entity record
- Scribbr B.V. (Learneo, Inc.)
- Origin
- Not recorded or not verified
- Domain history record
- Not recorded or not verified
- Third-party tracking record
- No third-party services listed in this record; this is not proof that none exist.
- External information
- Not recorded or not verified
- Processing
- Not recorded or not verified
- Retention statement
- Submitted texts are processed transiently and never archived in public repositories.
A recorded statement does not verify deletion or all data-processing behavior.
Verifiable audit trail & evidence
Four SHA-256-verified stages link the benchmark fixture, same-run interface screenshots, native exported artifact and archived pricing sources.
anchor_paraphrase_v1 · Inspect fixture & file inspector →
Captures entry rules, result view and export disclosure.
Screenshots, native output and official claims support different conclusions. Evidence grades are not product safety certifications.
Evaluation basis & full scores · Overall 88.4/100
Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.
Scoring version 2.3.1 · Test fixture anchor_paraphrase_v1
Honesty & reputation · 98.5/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 35 / 35 | Explanation unavailable | Evidence A → |
| Interaction restraint | 30 / 30 | Explanation unavailable | Evidence A → |
| Background & reputation | 19 / 20 | Explanation unavailable | Evidence A → |
| Engineering & privacy | 14.5 / 15 | Explanation unavailable | Evidence A → |
Capability · 84.1/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 50.1 / 65 | Fact Retention: 100% · Lexical Diversity: 71.6% · Semantic Similarity: 53.7% · Readability Score: 100/100 | Evidence A → |
| Deliverable specifications | 20 / 20 | Clean unwatermarked export (8/8); Export spec: 94-word high-quality paraphrased text via copy/export (750 bytes · zero truncation) | Evidence A → |
| Processing speed | 14 / 15 | Network-observed server wait: 4.8s (API mode: sync; network upload 0.1s / end-to-end 4.9s shown for reference only, never penalized) | Evidence A → |
Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.
Revisions & corrections
- 2026-11-06
Completed real-machine benchmark evaluation and 3-node screenshot verification under RealTest Protocol v2.3.