Technical operations workbench
One dependable place for every technical task.
Fast diagnostics, precise calculators, practical converters, security utilities, and full-featured applications—organized so the right tool is always seconds away.
Field notes
A private scratchpad stored only in this browser.
Category
Network & Diagnostics
Troubleshooting
Run ping, traceroute, port, DNS, and HTTP diagnostics.
Network & DiagnosticsDNS Tools
Inspect DNS records and troubleshoot name resolution.
Network & DiagnosticsCIDR Subnet Calculator
Calculate address ranges, masks, hosts, and subnet details.
Network & DiagnosticsIP Tools
Inspect IP addresses and common public address details.
Network & DiagnosticsHostname to IP / CIDR
Resolve hostname lists into addresses or CIDR output.
Network & DiagnosticsPing Test
Check host reachability and response timing.
Network & DiagnosticsMAC / OUI Lookup
Identify a network-interface vendor from a MAC address.
Network & DiagnosticsHTTP Client
Build, send, and inspect HTTP requests and responses.
Network & DiagnosticsClient Information
Review browser and connection details visible to the site.
Network & DiagnosticsSpeed Test
Measure browser-to-network throughput and latency.
Network & DiagnosticsNetwork Reference
Search common ports, CIDR capacities, DNS records, address ranges, HTTP statuses, and OSI layers.
Category
Telecom & VoIP
VoIP / SIP Toolkit
Analyze SIP/SDP and use NANPA and dial-plan helpers.
Telecom & VoIPPhone Config Generators
Generate provisioning files for popular phone brands.
Telecom & VoIPDTMF Tools
Use a DTMF keypad, code helper, and tone reference.
Telecom & VoIPTelephone Lookup
Normalize and inspect North American telephone numbers.
Telecom & VoIPArea Code Lookup
Look up location and numbering details for an area code.
Telecom & VoIPRF / Telecom Calculator
Calculate RF power, frequency, link, and telecom values.
Telecom & VoIPVoIP PCAP Analyzer
Analyze SIP, SDP, RTP, endpoints, audio, and call ladders.
Category
Security & Cryptography
Encoding & T9 Tools
Encode and decode text, T9/keypad input, binary, and formats.
Security & CryptographyEncryption Tools
Use hashing, AES, RSA, PBKDF2, signatures, and verification.
Security & CryptographyCipher Identifier
Guess common encodings and ciphers from text samples.
Security & CryptographyHash Identifier
Identify likely hash algorithms by length and format.
Security & CryptographyCrypto Lab
Analyze frequency, bigrams, trigrams, IoC, and entropy.
Security & CryptographyCrypto Toolkit
Explore curated cipher tools, analyzers, and references.
Security & CryptographyPBKDF2
Derive keys with PBKDF2 and selectable HMAC algorithms.
Security & CryptographyX.509 Viewer
Inspect X.509 certificates and common fields.
Security & CryptographyPlayfair Cipher
Encrypt or decrypt Playfair digraph substitution.
Security & CryptographyHill Cipher (2×2)
Use a Hill cipher with invertibility checks modulo 26.
Security & CryptographyColumnar Transposition
Run keyword-ordered columnar transposition.
Security & CryptographyXOR Cipher Helper
Work with XOR and one-time-pad text, hex, or Base64.
Security & CryptographyEnigma Machine
Use an historically inspired Enigma I simulator.
Security & CryptographyPassword Generator
Generate strong random passwords with configurable rules.
Security & CryptographySteganography
Hide and extract messages in images.
Security & CryptographyLSB Stego (PNG)
Embed or extract messages from PNG pixels using LSB.
Security & CryptographyModern Crypto Studio
Run local AES-256-GCM, SHA-2, HMAC, and PBKDF2 operations with Web Crypto.
Category
Converters & Calculators
Conversions Hub
Open quick conversions, charts, and related calculators.
Converters & CalculatorsConversion Charts
Reference common unit and data conversion tables.
Converters & CalculatorsMath Suite
Calculate area, quadratics, percentages, bases, and more.
Converters & CalculatorsGeometry Calculator
Calculate common shape measurements and formulas.
Converters & CalculatorsBase Converter
Convert numbers between bases 2 through 36.
Converters & CalculatorsData Unit Converter
Convert data sizes and rates between bit and byte units.
Converters & CalculatorsUnit Converter
Convert common US and metric measurements.
Converters & CalculatorsExtended Units Converter
Convert across an extended set of measurement categories.
Converters & CalculatorsMeasurement Calculator
Calculate and convert practical measurement values.
Converters & CalculatorsVolume Calculator
Calculate volume for common shapes and containers.
Converters & CalculatorsElectrical Calculator
Solve electrical, circuit, and component calculations.
Converters & CalculatorsFinance Calculators
Calculate loans, ROI, tax, and common finance values.
Converters & CalculatorsUnix Timestamp Converter
Convert Unix timestamps and human-readable dates.
Converters & CalculatorsElectronics Lab
Solve Ohm’s law, voltage dividers, LED resistors, RC timing, three-phase power, and RF power.
Converters & CalculatorsUniversal Converter
Convert 17 engineering, scientific, computing, cooking, and everyday unit categories.
Category
Files, Media & Developer
Metadata Extractor
Extract metadata from common file formats.
Files, Media & DeveloperFile Analyzer
Detect file type, calculate hashes, and inspect metadata.
Files, Media & DeveloperImage Tools
Resize, convert, and adjust images in the browser.
Files, Media & DeveloperImage to Text
Extract or represent text from image input.
Files, Media & DeveloperMedia Tools
Build media conversions and work with common audio formats.
Files, Media & DeveloperServer Media Lab
Run server-side conversions and metadata inspection.
Files, Media & DeveloperText / File Converter
Convert and transform text-oriented file content.
Files, Media & DeveloperCode Formatter
Format common code and structured-data formats.
Files, Media & DeveloperWYSIWYG Editor
Compose rich text and export or download the result.
Files, Media & DeveloperColor Tools
Pick colors, convert formats, and check contrast.
Files, Media & DeveloperDeveloper Workbench
Format JSON, test regex, inspect URLs and JWT payloads, transform text, and generate UUIDs.
Files, Media & DeveloperImage Forensics Lab
Inspect local image structure, hashes, color statistics, transparency, EXIF, and PNG metadata.
Category
Finance & Reference
Category
Apps & Productivity
Weather Center
View current weather, forecasts, radar, alerts, and history.
Apps & ProductivityTN Lottery
Use Tennessee lottery dashboards, statistics, and pickers.
Apps & ProductivitySmart Budget Planner
Plan budgets, spending, savings, and financial goals.
Apps & ProductivityCasino Strategy Pro
Explore rule-aware casino strategy and probability tools.
Apps & ProductivityMarket Wars USA
Play a browser-based fictional trading strategy game.
Apps & ProductivityRandom Speaker
Choose a random speaker or participant from a list.
Apps & ProductivityIP Submission Tool
Review and securely submit the detected public IP address.
Apps & ProductivitySecure Random Studio
Generate unbiased numbers, dice, UUIDs, tokens, shuffles, and lottery-style picks.
Apps & ProductivitySpeech Studio
Convert speech to text and text to speech with browser and operating-system capabilities.
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