CapyToolkit

Tired of 'free' tools that sell your data? CapyToolkit is a full suite of browser-based utilities (encoders, testers, converters) that run 100% client-side. Nothing gets uploaded. No account needed. Your browser, your rules. capytoolkit.com 🔒

A sharp photo of a page isn't a scan. At an angle, the edges near the lens grow, so a rectangle comes out a trapezoid. CapyToolkit's deskew tool solves the projective transform locally: 4 corners, 8 constraints. capytoolkit.com/tools/person... #privacy

The State Department now rejects AI-edited passport photos. CapyToolkit's cropper never retouches pixels: six country specs, head-height and background-variance checks, an optional face model for the eye-line guide. Nothing uploads. capytoolkit.com/tools/person... #privacy

Your database client has a login page. Your browser doesn't. CapyToolkit's SQL Workbench runs DuckDB compiled to WebAssembly on dropped files: Parquet, Excel, SQLite, CSV. Queries run in a Web Worker, offline after first load. #webdev #duckdb capytoolkit.com/tools/develo...

Before pasting a prompt into AI, scrub the secrets. CapyToolkit's PII scrubber runs 22 regex patterns in vanilla JavaScript, swaps keys and SSNs for tokens like [EMAIL_1], and restores on return. Nothing leaves your browser. capytoolkit.com/tools/securi... #privacy #devtools #AI

An AI detector that scores in your tab: nothing uploaded, works with the connection off after one load, no account, no paid tier over the classifier. Four statistical signals plus a RoBERTa model via WebAssembly. capytoolkit.com/tools/text/o... #privacy

TOPS measures compute. LLM decode is memory-bound. Every token reads model weights. tok/s = bandwidth/model size. 7B Q4 on 102 GB/s: ~25 tok/s. 204 GB/s bus: ~51 tok/s. capytoolkit.com/blog/buying-... #LocalLLaMA #AIPC #llm

CapyToolkit is on the Microsoft Store. A growing collection of browser tools, free to use, no account, works offline. Nothing leaves your machine. apps.microsoft.com/detail/9MXJ5... #privacy #webdev

Your 8000 Hz mouse polls at 1000 Hz in every browser. PointerEvents coalesce at ~1000 events per second. The Input Lag Tester shows the cap live: move your mouse, watch the chart. No upload. No server. 100% local. capytoolkit.com/tools/hardwa... #gaming #privacy #devtools

Your server just shipped a 2 GB log file. In your browser: no sign-up, no upload. Big Log Explorer loads 500MB+ logs through Web Workers and IndexedDB. Text search, ERROR/WARN/INFO/DEBUG filters, and a draggable time-series chart. 👉 capytoolkit.com/tools/develo... #privacy

CapyToolkit's cron parser turns 0 */6 * * * into plain English and previews your next 5 runs, entirely in the browser using your local clock. No server ever sees your schedule. capytoolkit.com/tools/develo... #devtools #webdev #opensource

Day 2 of vibe coding

MIDI keyboard guides compare key counts. None tell you to check for ghost notes before buying. Our tester uses the Web MIDI API: connect the keyboard, press every key, spot dead contacts and double-triggers in your browser. No install. No upload. capytoolkit.com/tools/hardwa... #musicproduction

The CapyToolkit token counter now tracks 37 AI models from 15 providers, up from 11. Live pricing updates daily. Each model's context window shows next to usage percentage. Compare all 37, pick the one. Paste your prompt, zero uploads. capytoolkit.com/tools/develo... #devtools

Most password checkers send your password to a server. This one runs offline in your browser, nothing uploaded. Shannon entropy plus zxcvbn pattern analysis. The lower score wins. Trust the lower signal. capytoolkit.com/tools/securi... #privacy #security

Your browser can run SHA-256, SHA-512, and HMAC locally via WebAssembly. No upload, no server, no data on the wire. That means you never need a third-party site to hash a file or verify a webhook signature. capytoolkit.com/tools/develo... #webdev #security #hash

CapyToolkit's CSS Gradient Builder runs in your browser. Build linear, radial, or conic gradients — drag color stops, set angles, pick colors in HEX, HSL, or OKLCH. Copy as CSS, Tailwind, or custom properties. Works offline. Nothing uploaded. capytoolkit.com/tools/design... #webdev #css

JavaScript has two URL encoding functions. encodeURI preserves slashes, ?, #, &, =. encodeURIComponent encodes everything except letters, digits, and -_.~. encodeURIComponent on each value, encodeURI on a complete URL. Runs in your browser: capytoolkit.com/tools/securi... #privacy #webdev

TLS cert validity is weeks. Online checkers send your PEM to their server. The X.509 Inspector runs in your browser — paste PEM or DER, or fetch from a domain. Flags expiry, weak keys, SHA-1 sigs, and chain breaks. Zero uploads. Try it here: capytoolkit.com/tools/securi... #devops #certificates

Your browser broadcasts 30+ signals to every site: canvas hash, audio fingerprint, GPU renderer, fonts, timezone. At 20 bits of entropy, ~1 in a million match yours. Run the scan. Nothing gets uploaded. capytoolkit.com/tools/securi... #privacy #security #browser

Your browser runs DuckDB via WebAssembly. Drop a Parquet, CSV, Excel, or JSON file into a tab and query it with full SQL. No install. No upload. No account. Every byte stays local. Works offline, too. capytoolkit.com/tools/develo... #devtools #privacy

Your controller drifts. Your game knows, but it won't tell you. Most games hide minor drift behind a software deadzone. This tool shows raw axis values at 5 decimal places, the numbers your game filters out. Zero uploads. capytoolkit.com/tools/hardwa... #gaming #gamepad

Token counters usually send your prompt to a server to count it. Defeats the purpose. Paste your prompt into CapyToolkit. Instant table: tokens, context %, cost per model. Sort by what matters. In your browser. Nothing uploaded. capytoolkit.com/tools/develo... #devtools

11% of employees pasted company data into ChatGPT. Developers — your number is higher. CapyToolkit's PII Scrubber detects emails, API keys, tokens, and internal data locally. Nothing uploaded. Scrub before you send. capytoolkit.com/tools/securi... #privacy #devtools

Before your next video call, run this webcam test first. Lighting balance, face framing, actual resolution — everything locally, nothing uploaded. Most webcam checkers ship your frames to a server. Ours doesn't. Your browser, your rules. capytoolkit.com/tools/hardwa... #privacy #webdev

New monitor? Test it before the return window closes. CapyToolkit's Suite runs fullscreen: 8 colors, UFO ghosting, banding, and contrast tests. Right-click to mark bad pixels — screenshot and send the proof to the store for a replacement. capytoolkit.com/tools/hardwa...