Score text for AI authorship with burstiness, repetition, and trigger-phrase analysis — percentage plus per-section breakdown. Teachers screen a 2,000-word essay in seconds — runs locally, free to start with fair limits.
Content reviewed October 2026 · About Toolzum
Catch grammar, spelling, and punctuation errors with in-browser pattern matching — homophones, run-ons, misplaced commas. Writers proofread a 1,000-word draft in seconds — runs locally, free to start with fair limits.
Translate text between 16 languages with automatic source detection via the AI API. Bloggers localize a 500-word post in seconds — 1 credit per translation, sign in free for 5.
Design click-optimized YouTube thumbnails by compositing bold text, cutout images, and effects on a 1280x720 smart canvas. Creators A/B-test two variants per video — runs locally, free to start with fair limits.
Remove and replace image backgrounds with edge-aware detection — no green screen needed. Sellers shoot product photos on any table, then swap to clean white. Runs locally on canvas — free to start, fair limits.
Count word occurrences with percentages and top-N ranking — keyword density, essay analysis, content audits. Spot a 5% stuffing problem instantly — free, local, no signup.
Scores under ~35% read as human-written on the tool's own meter; higher scores flag AI signals, with very high scores the strongest. Treat the middle band as 'needs human review', not a verdict. A 2,000-word essay scoring 82% deserves a conversation with the author, not an automatic accusation.
No — all analysis happens locally in your browser with pattern statistics, so checked text never leaves your device. Safe for student submissions and unpublished drafts; nothing is sent to any server.
Burstiness measures sentence-length variation: humans mix short punches with long explanations (high burstiness), while raw AI output stays uniform (low burstiness). Heavily edited AI text regains burstiness, which is why the score is one indicator among several, never a final judgment.
Yes — paraphrasing, mixed human-AI drafting, and careful editing all lower scores, so a low score never proves human authorship either. Use the tool as a screening signal alongside process evidence (drafts, outlines, in-class writing), not as a sole academic-integrity verdict.
Checking is free and local — no credits involved and no per-use cap. Only saving the results report counts: one Pro download per save (anonymous visitors sign in first; signed-in free get 2 Pro downloads a day; Pro unlimited).
AI Humanizer
Rewrite stiff AI-sounding text into natural human-like prose in 5 tones — casual, professional, friendly, natural, storytelling. Bloggers convert robotic drafts into readable posts — runs locally, free to start with fair limits.
Grammar Checker
Catch grammar, spelling, and punctuation errors with in-browser pattern matching — homophones, run-ons, misplaced commas. Writers proofread a 1,000-word draft in seconds — runs locally, free to start with fair limits.