kilaz.com Tools

Free, fast, privacy-friendly tools that run right in your browser.

Text

Fancy Text Generator Convert text into 23+ Unicode styles — bubble, zalgo, leet, runes and more.
Word Counter & Case Converter Count words, characters and sentences, see reading time and keyword density, and change text case.
Unit Converter General-purpose converter for length, mass, temperature, volume, data, pressure, energy and more.

Developer

Base64 Encoder / Decoder Encode and decode text or files to and from Base64, including URL-safe output.
URL Encoder / Decoder Percent-encode and decode URLs or individual query components.
JSON Formatter & Validator Beautify, minify and validate JSON with clear error messages.
Hex Viewer View text, hex, base64 or a file as a hex/decimal byte dump with ASCII gutter.
JWT Decoder Decode JSON Web Tokens, check expiry and verify HMAC signatures.
Color Converter & Contrast Checker Convert HEX, RGB, HSL, HWB and OKLCH, build tints and shades, and check WCAG contrast.
JSON ⇄ YAML ⇄ CSV Converter Convert data between JSON, YAML and CSV with clear errors, flattened nested keys and delimiter detection.
Markdown Live Preview Write GitHub-flavored Markdown with a live, sanitized preview. Copy or download the HTML.
HTML Entity Encoder / Decoder Encode text to named, decimal or hex HTML entities, or decode any entities back to plain text.
Regex Tester Test JavaScript regular expressions with live highlighting, capture groups and replace preview.
Text Diff Checker Compare two texts side by side or unified, with added, removed and changed words highlighted.
Unix Timestamp Converter Convert epoch timestamps (s, ms, µs, ns) to readable dates and back, in any time zone.
UUID / ULID Generator Generate UUID v4, time-ordered UUID v7 and ULIDs in bulk, and inspect any UUID or ULID.
Cron Expression Explainer Turn cron schedules into plain English and see the next 10 run times in local time or UTC.

Security & Privacy

Password Generator Generate strong random passwords with adjustable length and character sets.
Hash Generator Hash text with SHA-1/256/384/512, or checksum a file (incl. MD5) and compare to an expected hash.
PHP Deobfuscator Safely unwrap obfuscated PHP (base64/gzinflate/eval layers) without executing it.
Photo Metadata Viewer & Remover View EXIF, GPS, IPTC and XMP data in photos and strip it losslessly — nothing is uploaded.

Images & Media

QR Code Generator Create custom QR codes for links, WiFi, contacts and more. Download PNG, SVG or JPG.
IPTV Player Play an M3U playlist from a link or a file. Search channels and watch in the browser.
Image Compressor & Resizer Compress and resize JPEG, PNG, WebP and AVIF images in your browser — nothing is uploaded.

AI (runs on your device)

Background Remover Remove photo backgrounds with AI in your browser: transparent PNG, solid colour or blur.
Speech to Text Transcribe or translate audio and video with Whisper on your device. Export TXT, SRT, VTT.
Image to Text (OCR) Extract text from screenshots, scans and photos with OCR that runs in your browser.

Network

What's My IP See your public IP, IPv4/IPv6, reverse DNS, browser and OS, and the headers your browser sends.
DNS Lookup Look up A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records for any domain, with TTLs.
SSL Certificate Checker Check a site’s TLS certificate: expiry and days left, issuer, SANs, key, chain and hostname match.
HTTP Header Checker Inspect response headers, follow redirects hop by hop and audit HSTS, CSP and other security headers.
Subnet / CIDR Calculator IPv4 and IPv6 subnet maths: network, broadcast, host range, masks, binary view and subnet splitter.
WHOIS Lookup (RDAP) Registrar, creation and expiry dates, status, name servers and abuse contacts for any domain, IP address or AS number.
IP & ASN Lookup Which network announces an IP: ASN, BGP prefix, owner, RPKI status, location and abuse contact, or the prefixes an AS announces.
Cloudflare IP Tools Check whether an IP or website is behind Cloudflare and which data centre serves it, and copy Cloudflare's IP ranges as nginx, Apache or firewall config.
DNS Blacklist Checker Check an IP address or domain against 15 spam blacklists (Spamhaus, Barracuda, SpamCop, SURBL, URIBL and more), with removal links.
Email Security Checker Grade a domain's email setup: MX, SPF (10-lookup limit), DKIM, DMARC, MTA-STS, TLS-RPT and BIMI, with plain-English fixes.
Looking Glass Ping and traceroute from our server in Canada, plus an index of public looking glasses (Hurricane Electric, NTT, Lumen, Cogent…) and BGP tools.

Radio & Satellite

Open the Radio & Satellite hub with the live satellite globe →

Satellite Tracker & Pass Predictor When the ISS, METEOR weather satellites or amateur radio satellites pass over you, with frequencies, Doppler and a live map.
SDR Frequency Guide Signals worth receiving with an RTL-SDR or scanner: ADS-B, AIS, ACARS, satellites, weather radio, APRS, ISM sensors, Meshtastic and more.
Antenna Calculator Element lengths for dipoles, ground planes, 5/8 verticals, V-dipoles for weather satellites, ADS-B collinears and Yagis, with diagrams.
Coax Cable Loss Calculator Feed line loss for LMR-100A to LMR-600, RG-58, RG-8X, RG-213, RG-6 and more: dB lost, watts at the antenna, SWR loss and a cable comparison chart.
RF Calculators Wavelength, dBm ↔ watts, path loss, link budget, coax loss, SWR, radio horizon, Fresnel zone and EIRP, worked out as you type.
HF Propagation & Space Weather Live Kp index, solar flux and HF band conditions from 80 m to 10 m, explained in plain English.
Maidenhead Grid Locator Coordinates to grid square and back, your own grid, and the distance and beam heading between two locations.
Gray Line & Aurora Map Live world map of day, night and twilight with the NOAA aurora forecast and your sunrise and sunset, for planning HF DX.
Great-Circle Map Azimuthal equidistant map centred on your location: true beam headings and distances to anywhere, with PNG download.
WSPR Map: Who Heard Me? Every station that heard your WSPR signal (or that you heard), on a live map with SNR colours and band filters.
US Amateur Band Plan Interactive chart of Technician, General, Advanced and Extra privileges on every band from 160 m to 70 cm, with CW/data and phone segments.
Ham License Practice Exam Practice tests from the official 2026 Technician, General and Extra question pools, with study by topic and progress tracking.
Morse Code Translator & Trainer Text to Morse and back with audio, a flashing light and WAV download, a Koch-method trainer and the clickable Morse tree.
Callsign Prefix & DXCC Map Which country a callsign is from, its CQ and ITU zones, local time and beam heading, with all 340 DXCC entities on a map and a worked tracker.
Q-Codes, Phonetics & RST The NATO phonetic alphabet with spoken pronunciation and a callsign speller, Q-codes, CW abbreviations and an RST report builder.
Callsign Lookup Look up US amateur radio callsigns and FCC land-mobile licences with their frequencies.

Electronics

Open the Electronics hub: calculators, pinouts and ICBizLabs hardware projects →

Resistor Color Code Read 4, 5 and 6 band resistors or find the colours for any value, plus SMD codes (3-digit, 4-digit, EIA-96).
Capacitor Code & Converter Decode ceramic capacitor markings like 104K or 2A473J, convert pF/nF/µF, and read X7R/C0G dielectric codes.
Ohm's Law Calculator Enter any two of voltage, current, resistance and power to get the rest, with a live circuit and the formula wheel.
LED Resistor Calculator The right series resistor for one LED or a string, with the nearest standard value, power rating and a glowing circuit.
Voltage Divider Calculator Output voltage for two resistors (with an optional load), or the best standard resistor pair for a target voltage.
555 Timer Calculator Astable frequency and duty cycle or monostable pulse length, with the circuit and an animated output waveform.
RC / RL / LC Filter Calculator Cutoff and resonant frequencies for RC, RL and RLC filters, drawn as a Bode plot of gain and phase.
PCB Trace Width Calculator IPC-2221 trace width for a given current and temperature rise, with resistance, voltage drop and power loss.
AWG Wire Gauge & Voltage Drop AWG sizes in mm and mm², resistance per length, voltage drop for your cable run, and true-size wire drawings.
Interactive Pinouts Clickable pin maps for the ESP32-S3-DevKitC-1, Raspberry Pi 40-pin header and Arduino Uno, filtered by I²C, SPI, UART, ADC and more.

Apps

Bookmarks Arrange links on visual boards — categories, drag-and-drop, import, export and sharing.
Encrypted Pastebin Share text, code or a file with end-to-end encryption, expiry, passwords and burn after reading.

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