AI Agent Tool-Use Security
A practical taxonomy of how LLM agents with tool access get exploited: exfiltration, confused deputy, destructive write, and untrusted-to-action, with an open dataset of 24 patterns.
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Cleanup Guides
Find the right guide by device, app, or clutter type, then go straight to the fix.
Clearing Cache Delete Anything
Before you tap "Clear cache," it is fair to worry: will this wipe your photos, log you out of everything, or delete a chat you needed? It is one of the most…
Stop WhatsApp Filling Storage
WhatsApp is one of the sneakiest storage hogs on any phone. It doesn't just store your chats — by default it automatically downloads every photo, video, GIF,…
Check MD5 Checksum Windows
You downloaded a file, and the site lists an MD5 (or SHA-256) checksum next to the download link. Checking it takes under a minute and confirms two things: the download was not…
Cut Audio Online MP3
You have an audio file that is too long: a voice memo with dead air at the start, a lecture recording where only ten minutes matter, a song you want as a ringtone. You do not need…
WebP Conversion Gap
WebP is now the default image format across much of the web. Browsers request it, content platforms serve it, and site owners ship it to save bandwidth. Yet a large and steady…
Storage Cleanup Checklist iPhone
When your phone says it's full, you don't need a vague pep talk — you need a list to work through. This is that list: a complete phone storage cleanup…
Independent Tools Worth Knowing
A running list of software made by independent developers and small bootstrapped teams: what each one actually does, what it costs, and who is behind it. No affiliate links, no sponsored slots.
Manage Storage 128GB iPhone
A 128GB iPhone sounds roomy until iOS, your photos, and a few video apps eat into it. After the system takes its share and your camera roll grows, 128GB…
Find Delete Duplicate Files
Duplicate files pile up quietly: the same photo saved twice, a document downloaded again, music ripped in two formats, copies left behind after a migration.…
MCP Tools Things LLMs
LLMs confidently get hashes, UUIDs, counting, and the current time wrong. Cleanor free zero-auth MCP server gives your AI agent exact answers instead.
Unit Conversion Chart
A unit conversion chart for length, weight, volume and temperature between metric and imperial, plus fractional inches to millimeters. Free printable PDF.
Social Media Image Sizes
Current recommended image sizes for Instagram, Facebook, X, LinkedIn, YouTube, TikTok and Pinterest, with aspect ratios. Free printable cheat sheet.
Alt Codes List
The full alt codes list: hold Alt and type the number to insert symbols like ©, °, é and ™. Free printable PDF.
Keyboard Symbols
What every symbol on your keyboard is called, from the tilde (~) to the pipe (|), and what each is used for. Free printable reference.
Markdown Cheat Sheet
The complete Markdown syntax in one page: headings, bold, links, lists, tables and code. Free printable cheat sheet PDF.
Regex Cheat Sheet
A complete regex cheat sheet: character classes, quantifiers, anchors, groups and flags, with example patterns. Free printable PDF.
Paper Size Chart
Every standard paper size, A-series and US, in millimetres, inches and pixels at 300 DPI. Free printable chart.
ASCII Table
The full ASCII table: all 128 characters with decimal, hex, octal and binary values, plus control characters explained. Free printable PDF.
HTTP Status Codes
The complete list of HTTP status codes (200, 301, 404, 500 and more), grouped by class, with what each one means. Free printable PDF.
HTML Color Codes
All 140 CSS/HTML named colors with their HEX and RGB values, in one chart. Free printable PDF.
The Cloud Storage Price Index 2026
At 2 TB, cloud storage costs about $0.005 per GB per month, but you rent it forever: roughly $1,200 over a decade. We indexed every major provider to find what a gigabyte really costs.
Much Data Streaming Use
A 2-hour 4K movie uses about 14 GB; an hour of music about 0.14 GB. Data used per hour for Netflix, YouTube, Spotify and more, by quality, with the exact numbers.
Many Photos Fit 64
A 128 GB iPhone holds about 37,000 HEIC photos but only 1,500 in 48 MP ProRAW. How many photos and how much video actually fit in every storage tier, after usable-space losses.
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