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Check audio and video clips for AI-generated voices and get a citable verdict.

A language-course library with personal and institutional access routes.

Compare a resume with the requirements in a job advert

Monitor website availability and simulate visitor journeys to catch outages and slow transactions.

School-exam revision using subject lessons, flashcards and question practice.

Count text and tidy line-based lists

Photograph parking signs and see which visible rules apply.

Explore labeled blockchain activity and build transaction alerts

Official GRE practice tests, vocabulary resources, maths review and test-maker guidance.

A free patient symptom checker from Isabel Healthcare, based on a tool used by doctors.

AI essay writer that drafts cited academic papers from a topic prompt.

Ask a live database or spreadsheet questions in plain English and turn the answers into dashboards, reports and alerts.

Recompress and check PNG images

Measure throughput, jitter, loss and application-oriented network quality

Ten business names with domain, handle and trademark checks for $9.

AI detection and plagiarism checking tools for text and documents.

Language courses with audio, conversation and pronunciation practice.

Choose a travel eSIM around destinations, data and validity

Molecular-biology quantities with visible formulas

Calculators for primers, reaction setup and molecular quantities

Check TLS protocols and ciphers from the command line

Validate route origins against RPKI data

Inspect a sample message for deliverability problems

Check PDF accessibility and inspect reading structure