Minimalist Online Utilities & Calculators
Fast, private, and ad-free client-side tools across 12 categories: Healthcare NPI/HL7, Aviation NOTAM/ICAO, Maritime MMSI/ISO, Finance IBAN/ISIN, 2D Barcodes, Developer Parsers, Security Hashes, and Math Calculators.
100% Free Forever
Zero subscriptions, paywalls, or limits.
No-Ads, No Distractions
Clean minimalist interface & 100% privacy.
Wide Range of Tools
56+ utilities across 12 categories.
Healthcare & Medical Suite(3)
NPI Modulo 10 validator, ER7 HL7 v2 / JSON FHIR message viewer, and ICD-10-CM / CPT medical code lookup.
NPI (National Provider Identifier) Checksum Validator
Validate 10-digit US National Provider Identifier (NPI) health provider numbers using the official Modulo 10 Luhn algorithm with 80840 prefix.
HL7 & FHIR Medical Message Viewer
Parse raw ER7 HL7 v2 messages (MSH, PID, PV1, OBX) and JSON FHIR resources into interactive, readable field tables and segment dictionaries.
ICD-10-CM & CPT Medical Code Lookup
Search official ICD-10-CM diagnosis codes and CPT medical procedure codes with category descriptions and format validation.
Manufacturing & Quality Suite(5)
GTIN-8/12/13/14 checksum validator, BOM flattener & cost rollup, Worst-Case/RSS tolerance stackup, and Julian lot code decoders.
GTIN / UPC / EAN Checksum Validator & Generator
Validate and generate check digits for GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), and GTIN-14 (ITF-14) barcode numbers using Modulo 10.
Bill of Materials (BOM) Flattener & Cost Rollup
Flatten multi-level indented Bill of Materials (BOMs), consolidate duplicate part numbers, calculate extended quantities and unit cost rollups.
Tolerance Stack-up Calculator (Worst-Case & RSS)
Perform 1D mechanical assembly tolerance stack-up analysis using Worst-Case (WC) max/min bounds and Root-Sum-Square (RSS) 3-Sigma statistical limits.
ISO 9001 Document Numbering Generator
Generate standardized Quality Management System (QMS) document numbers (SOPs, Procedures, Forms, Policies) based on department codes and revision levels.
Lot Number & Batch Code Decoder
Decode manufacturing Julian date codes (YYDDD), production dates, factory plant IDs, and shelf-life expiration dates from product lot numbers.
Aviation & Aerospace Suite(4)
NOTAM aviation message decoders, ICAO/IATA airport lookups, Great Circle flight time & fuel calculators, and FAA N-Number / Mode-S decoders.
NOTAM (Notice to Air Missions) Decoder
Parse raw aviation NOTAM messages into plain-English summaries detailing Q-codes, effective times, lower/upper altitude limits, and coordinates.
ICAO / IATA Airport & Airline Code Lookup
Search 3-letter IATA and 4-letter ICAO airport codes with city, country, coordinates, elevation, and runway specifications.
Flight Time & Fuel Burn Calculator
Calculate Great Circle flight distance in nautical miles, estimated en-route flight duration, headwind/tailwind speed adjustments, and total fuel burn.
Aircraft Tail Number (N-Number) & Mode-S Hex Converter
Validate US FAA aircraft N-numbers and convert between tail registration numbers and 24-bit Mode-S ICAO Transponder Hex addresses.
Maritime & Logistics Suite(4)
ISO 6346 container validators, MMSI MID flag state lookups, IMO ship number validators, and nautical mile/knot converters.
Container Number (ISO 6346) Checksum Validator
Validate 11-character intermodal shipping container numbers (Owner Code, Category, Serial Number, Check Digit) using ISO 6346 Modulo 11.
MMSI (Maritime Mobile Service Identity) Lookup & Validator
Validate 9-digit MMSI vessel numbers and lookup Maritime Identification Digit (MID) flag state country of origin and vessel category.
IMO Ship Number Checksum Validator
Validate 7-digit IMO ship identification numbers using weighted Modulo 10 check digit verification for commercial maritime vessels.
Nautical Mile ↔ KM ↔ Knots Converter
Convert between Nautical Miles (nmi), Kilometers (km), Miles (mi), Knots (kt), and km/h with interactive speed and distance conversion.
Finance & Banking Suite(6)
ISO 7064 IBAN validators, ISIN & CUSIP securities validators, Luhn & VAT calculators, invoice generators, and MACRS depreciation calculators.
IBAN (International Bank Account Number) Validator
Validate IBAN format across 80+ countries using ISO 7064 Modulo 97-10 check digit verification and BBAN structure checks.
ISIN & CUSIP Securities Checksum Validator
Validate 12-character ISIN (International Securities Identification Number) and 9-character CUSIP financial instrument identifiers using Modulo 10.
Luhn & VAT Check Digit Calculator
Generate and validate Luhn Modulo 10 check digits and verify European / Global VAT tax registration number checksums.
Invoice Number Sequence Generator
Generate customizable sequential invoice numbers with prefixes, zero-padding, date variables ({YYYY}{MM}), and batch export.
Loan Amortization Schedule Generator
Calculate monthly loan payments, total interest paid, remaining balance schedules, and principal vs interest payment breakdowns.
Asset Depreciation Calculator (Straight-Line & MACRS)
Compute asset depreciation schedules comparing Straight-Line and US IRS MACRS (3, 5, 7, 10, 15, 20-year) property recovery methods.
Barcode & 2D Matrix Suite(14)
Data Matrix, PDF417, Aztec Code, Micro QR, GS1-128, SSCC-18, UPS MaxiCode, USPS IMb, Code 128/39 & UPC/EAN generators and image decoders.
Data Matrix Generator & Reader
Generate high-density 2D Data Matrix codes (ECC 200 / GS1 DataMatrix) and decode/read uploaded Data Matrix images online.
PDF417 Generator & Reader
Create stacked 2D PDF417 barcodes for ID cards, boarding passes, and logistics labels, and decode uploaded PDF417 barcode images.
Aztec Code Generator & Reader
Generate high-efficiency 2D Aztec codes for transit tickets and airline boarding passes, and decode Aztec code images.
Micro QR Code Generator & Reader
Generate compact Micro QR codes (M1-M4) for small components and circuit boards, and scan/decode Micro QR images.
JAB Code (Color Barcode) Generator & Reader
Generate multi-color 2D JAB codes (Just Another Barcode) with high data capacity and decode uploaded color JAB code images.
Han Xin Code Generator & Reader
Generate Chinese national standard Han Xin Code 2D matrix symbols for Chinese characters and decode Han Xin Code images.
GS1-128 & SSCC-18 Barcode Generator & Reader
Generate GS1-128 shipping container barcodes and 18-digit SSCC pallet labels with Application Identifiers (AIs) and check digit verification.
UPS MaxiCode Generator & Reader
Generate 2D hexagonal MaxiCode matrix symbols used for UPS automated high-speed parcel sorting and decode MaxiCode images.
USPS Intelligent Mail Barcode (IMb) Generator & Reader
Generate 65-bar 4-state height-modulated USPS Intelligent Mail Barcodes (IMb) for mail sorting and decode IMb barcode strings.
FedEx & UPU S10 Postal Barcode Generator & Reader
Generate UPU S10 13-character international tracking barcodes and FedEx shipping label payloads with check digit validation.
ASC X12 / EDI 856 ASN Parser & Generator
Parse and build ASC X12 EDI 856 Advanced Shipping Notices (ASN), BSN, HL segments, and retail manifest shipping label data.
Code 128 Barcode Generator & Reader
Generate high-density 1D Code 128 barcodes (Auto, Code A, B, C) with modulo 103 checksums and decode Code 128 barcode images.
Code 39 Barcode Generator & Reader
Generate alphanumeric Code 39 1D barcodes used in inventory and defense, and scan/decode Code 39 barcode images.
UPC-A & EAN-13 Retail Barcode Generator & Reader
Generate 12-digit UPC-A and 13-digit EAN-13 retail barcodes with Modulo 10 check digit verification and decode retail product barcodes.
Developer Tools & Parsers(8)
Python Dict to JSON, JSON to Pydantic, Markdown to HTML workstation, Query String parser, Base64 & URL Encoders.
Python Dict to JSON Converter
Convert Python dictionaries with single quotes, True/False/None, tuples, sets, and custom objects to valid formatted JSON.
JSON Tabular Diff & Comparison Tool
Compare tabular JSON datasets and nested array payloads row-by-row and field-by-field. Detect identical rows, modified fields, added rows, and removed rows with custom dot-notation path extraction, primary key matching, and full-screen workstation mode.
JSON to Pydantic Model Generator
Instantly generate typed Pydantic v1/v2 models from any JSON. Handles nested objects, arrays, Optional fields, snake_case aliases, and field validators.
Markdown to HTML Converter & Preview
Convert Markdown to clean HTML with real-time preview, full-screen workstation editor, HTML5 document boilerplate generation, minification, and code export.
URL Query String to JSON Converter
Parse URL Query Strings (URLSearchParams) to JSON objects or convert JSON objects to encoded URL parameters with array bracket/duplicate formatting rules.
Base64 Encoder / Decoder
Encode text or files to Base64 and decode Base64 strings back to text or downloadable files. Supports URL-safe Base64 and image preview.
URL Encoder / Decoder & Inspector
Encode and decode URLs, URI components, and Base64 URL-safe strings with real-time character-by-character percent-encoding replacement inspector.
UTM Link Builder
Build perfectly formatted UTM tracking URLs for Google Analytics campaigns with source, medium, campaign, term, and content parameters.
Security, Hashes & Cryptography(3)
Multi-algorithm MD5/SHA-256/SHA-512/HMAC hashing, CSPRNG password generation, and hash report export.
Strong Password Generator
Generate customizable, cryptographically secure passwords with custom lengths and character rules.
MD5 & Hash Generator
Compute secure MD5, SHA-1, and SHA-256 cryptographic hashes for any text string instantly.
Multi-Algorithm Hash & HMAC Generator
Compute secure MD5, SHA-1, SHA-256, SHA-384, SHA-512, and RIPEMD-160 cryptographic hashes for text strings and uploaded files with HMAC secret key support.
UUID, QR & Icon Generators(3)
RFC 9562 UUID v4/v7 generators with timestamp extraction, high-res QR Codes, and Favicon generator.
UUID Generator (v4 & v7)
Generate cryptographically random UUID v4 and time-ordered RFC 9562 UUID v7 identifiers with built-in timestamp extraction, batch generation, and custom formatting.
QR Code Generator from URL & Text
Generate high-resolution QR Codes for URLs, plain text, Wi-Fi networks, emails, and vCards with custom colors, error correction levels, and SVG/PNG download.
Favicon Generator
Upload any image and generate all standard favicon sizes (16×16 to 512×512). Preview every size and download individually or as a ZIP archive.
Text & Content Utilities(2)
Real-time word counting, character metrics, and duplicate line removal.
Converters & Design Utilities(5)
RGB to HEX color converter, aspect ratio calculator, and BitTorrent Magnet URI parser & builder.
Bulk Image Cropper & Resizer
Crop and resize up to 20 images simultaneously with custom or fixed aspect ratios (1:1, 16:9, 4:5), max dimension limits, and batch ZIP export.
RGB to HEX & Color Converter
Convert RGB color values to HEX, HSL, and CMYK formats with a live interactive color preview.
Aspect Ratio Calculator
Calculate simplified aspect ratios from resolutions and auto-scale width or height with locked ratio calculations.
Table to JSON Converter (Excel & Sheets)
Paste tables directly from Excel or Google Sheets, or upload XLSX, CSV, TSV files. Drop columns, run aggregations, apply custom JS/Python transformations, and calculate column metrics.
Magnet URI Parser & Link Generator
Parse BitTorrent Magnet links into Info Hash (BTIH Hex & Base32), display name, file size, web seeds, and interactive trackers list with custom magnet builder.
Media & Document Downloaders(2)
Extract high-resolution PDF presentations and MP4 videos directly.
SlidePlayer PDF Downloader
Download Slideplayer presentations as high-resolution PDF documents instantly for free.
iFunny Video Downloader
Download high-quality iFunny videos with audio in MP4 format without registration or watermarks.
Recent Guides & Articles
How to Monetize your SlideShare Content - an Expert's guide
Explore new strategies with us to monetize your content on Slideshare presentations effectively. From lead generation to affiliate marketing, we've covered everything in our comprehensive blog post to turn your SlideShare PPTs into revenue generating machine.
Top 5 Slideshare Alternatives in 2024
In this blog post, we will present you with 5 Slideshare alternatives that you can try to share, and collaborate your presentations with your audience in 2024. We’ll discuss the advantages of these Slideshare alternatives and their unique offerings.
7 Tips to give Presentations like a Boss
Giving virtual presentations is very common and demanding skill now a days. Learn how to excel at virtual presentations with our 7 expert tips. We will help you deliver your presentations like a boss, from technical prep to an engaging presentation we've covered it all.