pah.moi
Functional clarity. A privacy-first set of tools, learning environments, toys, projects, and some unsolicited commentary.
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random tool: Password Generator · Generate a random password or a word-based passphrase in your browser.Dig over DoH · Client-side DNS-over-HTTPS lookup.Subnet Calculator · Work out a network, broadcast, netmask, host range, and host count from an IPv4 or IPv6 CIDR.X.509 Certificate Analyzer · Decode a PEM/DER certificate: subject, issuer, validity, serial, and SANs.Multi-Encoder · Encode text in fourteen encodings at once, or decode a pasted value back into text.Email Header Analyzer · Trace an email's Received hops with delays, and read its auth (SPF/DKIM/DMARC) results.HTTP Response Header Analyzer · Paste HTTP response headers and grade the recommended security set.CVSS Calculator · Score a CVSS v3.1 or v4.0 vector: the score, its severity band, and the vector string.File Hasher & Checksum Verifier · MD5, SHA-1, SHA-256, SHA-512 and BLAKE3 of text/local files, and a checksum verifier.Hashprint Codec · Draw a SHA-256 or SHA-512 digest as a grid that decodes back to it, and compare two cell by cell.JWT Decoder · Decode a JWT's header and payload locally, and verify the signature when you supply a key.Log Parser · Pretty-print JSON logs and parse Common Log Format access lines into fields.Regex Reference · Look up a ready-made regular expression: 99 patterns with what each one matches.Packet Analyzer · Decode a raw hex packet into an Ethernet / IPv4 / TCP-UDP protocol tree.Local HTTP Request Constructor · Build an HTTP request, classify its headers, and generate curl / fetch / reqwest code.Epoch Converter · Convert a Unix timestamp to a calendar date in UTC or a named timezone (ISO 8601, weekday, hex).chmod Visor · Read and edit a Unix file mode as a grid, octal or symbolic, with alerts on risky modes.nmap Builder · Assemble an nmap scan command from options, with a note on how loud it is.openssl Helper · Build the openssl command for common certificate and key operations.wget Builder · Assemble a wget site-mirror / download command from options.Crontab Builder · Explain a cron expression in plain language, or build one from fields or a phrase.SSH Config Assistant · Build a ~/.ssh/config Host block from a few connection options.File Header Forensics · Identify a file from its bytes, audit its extension against them, and read the header.Base Converter · Convert an integer between binary, octal, decimal, and hex.Unicode Inspector · Break text into per-character codepoint, UTF-8 bytes, and category.Text Width · A string's byte, scalar, grapheme and terminal-width counts, on a column grid.Binary Value & Endianness Inspector · Interpret a byte buffer across endianness.Terminal Theme & ANSI Palette Designer · Import, validate, preview, and convert colour themes between emulator formats.ASCII & Unicode Diagram Studio · Redraw a pasted ASCII diagram in a Unicode connector style, then export it.Colour-Contrast & Terminal Readability Checker · WCAG 2 contrast and APCA for two colours, an ANSI palette, or the xterm-256 cube.Aspect-Ratio Visualizer · Compare source vs target aspect ratios: letterbox, pillarbox, crop, and stretch.Display Planner · Compare monitors on PPI, physical size, FOV, and pixels-per-degree across a multi-monitor desk.Display Calculator · Simplify a screen's aspect ratio and compute its pixels-per-inch.Keyboard Tester · Sweep your own keyboard for dead switches across ten enthusiast form factors.Client-Side Grep & Search · Line-level search over this site's content index, deep-linked to the page.Markdown Editor · Write Markdown with a live HTML preview and build the post's frontmatter.
random lab: Identity Flow Visualizer · Walk a SAML or OIDC login step by step: decode every redirect, token, and validation.Route & Longest-Prefix-Match Visualizer · Forward an address through an editable routing table.TCP Handshake Animator · Walk the TCP state machine one segment at a time, and watch both endpoints change state.TLS Handshake Inspector · Step through a TLS 1.3 handshake, decode the cipher suite, and walk the whole HKDF key schedule.Cryptography Lab · A 12-tab lab, Vigenère to Enigma: classical ciphers, modern building blocks, hashes and KDFs.Hash Avalanche Visualizer · See the hash avalanche effect: how a one-character change flips half of the hash output.Steganography Laboratory · Read the bit planes of a file, get a χ² verdict on hidden data, and embed or extract a payload.Compression Explorer · Step a greedy LZ77 encoder byte by byte: see the window, matches, and the size it saves.Formal Logic Compendium · A plain primer on propositions, connectives, truth tables and validity, then an Advanced workbench: build a formula from pickers and read its truth table, tableau and verdict, quantifiers in a finite model, checked proofs, and modal logic on a frame.Git DAG Simulator · Run commit, branch, checkout and merge, and watch the commit graph each one builds.PM-16 Micro-CPU · Assemble, single-step and watch a 16-bit CPU run. Predict the flag change before you step.Regular Expression Lab · Build a regular expression and watch it work: matches, groups, an explanation, three engines.Unix Signal Visualizer · Send signals to a process tree and watch them handled, ignored, blocked, or take default action.Design System Lab · Take the site's own visual/colour design system apart.Keyboard Shortcut Trainer · Drill shortcuts across application profiles: perform the task, get graded. Improve.
random toy: Drift · A seeded, animated particle field. Type a seed to reshape it.Lighthouse Keeper · A seashore day in twenty-four minutes: a turning beam, drifting weather, the keeper's log.Matrix Digital Rain · Seeded columns of glyphs falling with bright heads and decaying trails.Night Train · A seeded, endless night journey past procedural landscapes, weather, stations, and tunnels.Office After Midnight · A seeded empty night office on security cameras, with rare unexplained events.Packet Aquarium · A seeded ambient tank where synthetic network traffic swims as protocol species.Snow Globe · A seeded glass globe you furnish from a workshop palette; shake it and the flakes settle.Tiny Planet · A seed-driven miniature planet you observe from orbit: terrain, moons, eclipses.Windows · A seeded window onto a quiet, impossible place, with rare unhurried events.Ant Colony · A seeded ant colony: pheromone trails and an underground cutaway; add food, rocks, rain.Emoji Ecology · A seeded cellular-automaton ecology of plants, water, herbivores, and fire.Terminal Terrarium · A seeded terminal ecosystem where weather and light drive plants, fungi, and grazers.Chiptune Tracker · Compose on a step grid over four chip voices, play it, and export the WAV.Display Lab · A seeded historical-display exhibit with CRT scanlines, phosphor, and artifacts.Listening Port · A seeded deep-space listening station with a live spectrum, waterfall, and event log.Radio Between Stations · Tune a fictional FM band where a seed hides stations, with audio and saved bookmarks.Signal Lab · Generate DTMF, Bell MF and 2600 Hz, and watch the decoder name the tones back.Weather Machine · A seeded atmospheric console whose dials drive the sky, clouds, wind, and precipitation.Cyberpunk Terminal · A seeded synthetic network you explore from a prompt: missions drawn from a pool.Data Centre Dungeon · Work a night shift on a seeded floor: triage incidents, dispatch one crew, read the report.Pipeline Factory · Build a Unix text pipeline over a seeded log: see rows shrink, get the command.Space Station Builder · Build a cosy orbital station from a palette of modules; a comfort readout describes it.Treehouse Architect · Build a treehouse on a seeded tree's branch anchors; a structural readout rates it.ASCII Banner · Turn text into a five-row ASCII-art banner.Entropy Fountain · A seeded, deterministic fountain of bytes: the same seed replays the same spray.Hash Landscape · A deterministic decorative landscape generated from a text's SHA-256 digest.Hashprint · A deterministic, symmetric identicon generated from any text.Hourglass & Focus Timer · A tactile hourglass timer: countdown, Pomodoro or count-up. Flip it to start it.Strange Clocks · Unusual ways to render the current instant, in six families of clock face.Pet Rock · A desktop pet rock, modernized with advanced metrics and dynamic features.
random project: shhdoku.org · Sudoku with nothing on the board but the puzzle. A Svelte page that builds a board in your browser and proves it has one solution, with twenty-five rulesets, daily challenges and no ads.dontide.app · An ocean you swim through as a blue whale or a great white shark. 25 procedural worlds, a field journal, releasable whirlpools and earthquakes, and no paywalls or cooldown timers.vortaye.app · A severe-weather workbench. Real-time vortex mechanics and recreations of notable historical tornadoes, with CAPE, shear and helicity as direct controls, built for someone who asked for it.toroid.top · The viral balls-in-rings genre turned into a studio. One self-contained HTML file that is sandbox, level editor, eighteen-instrument synth and video recorder at once.SPA Day · One prompt, several models, and the single-page applications each of them produced.unfathom (preview) · Screenshot preview of a descent you take screen by screen through 127 generated biomes. Version 0.3, a beta prerelease: fight, forge, take a covenant, and let the Register write down what stopped you.adnaq · A simple tool for answering and tracking answers on generated study kits based around any subject of your choosing.totb · The Typing of the Bed. A typing game for winding down instead of speeding up: count sheep over a moonlit fence by typing the word each one carries.Values Draw · A brief coaching exercise. Sort sixty-eight value cards against a clock, then prioritize them to your preference, and find out which ones you actually keep when two of them collide.vibecode · A browser-local generative music instrument with Machine, Vibe, Wub, and Loop workspaces for sequencing, directing, performing, and revisiting sound.Throttle and Chain · Throttle and Chain, a pseudo-3D motorcycle combat racer where traffic, rival riders, hazards, and a countdown all compete for the road.
Many other options are available in the sections on the top menu above.