Learn every tool.
Long-form guides to all 43 LND AI tools — how each technology actually works, step-by-step usage, the pro tips that matter, and the honest limits nobody puts on a landing page. Every guide pairs with a free tool you can open immediately.
AI Tools
13 guidesGeneration, understanding and creative AI — the flagship credit-powered suite.
AI Text to Image GeneratorLearn how text-to-image AI works and how to write prompts that get results. Full walkthrough of LND AI’s free generator: 12 styles, 9 sizes, seeds and batches.AI Text to SpeechHow AI text-to-speech turns writing into natural voice audio. Guide to voices, 22 Indian languages, speed control and choosing the right engine in LND AI’s free TTS.AI Speech to TextHow AI transcription works, what accuracy to expect, and when to use server vs on-device engines. Full walkthrough of LND AI’s free speech-to-text tool.AI Language TranslatorHow neural machine translation thinks, why literal translation fails, and how to translate English to Hindi, Tamil, Bengali and 20 more languages accurately.AI Image AnalysisHow vision AI describes photos, reads text and answers questions about images. Practical prompts and use cases for LND AI’s free image analysis tool.AI Image UpscalerHow AI upscaling adds real detail instead of blur, when 2× helps (prints, Retina screens) and when to re-shoot instead. Free upscaler walkthrough included.AI Background RemoverHow AI separates subjects from backgrounds, which photos cut out cleanly, and how to get pixel-perfect transparent PNGs for free with LND AI.AI Background ReplacerSwap photo backgrounds with prompt-generated scenes that keep lighting consistent. How replacement differs from cut-and-paste, plus prompt recipes for realistic results.AI Image UncropHow AI outpainting extends images past their borders to new aspect ratios. Real use cases, limits, and LND AI’s free uncrop tool explained.Web Image ScraperHow web scrapers read pages, what structured extraction gives you, and the etiquette of scraping responsibly. Free scraper walkthrough for any public page.Talk AI CompanionWhat AI companion chat is, how characters remember you, and what makes Talk different — Hinglish-first interactive chat-fiction with voice calls. Full walkthrough.Onyx Image EditorA full photo editor that runs 100% locally in your browser. Crop, resize, mask, filter, text, shapes and format conversion — nothing ever uploads to a server.Monyx StudioAI vocal removal, karaoke, a multitrack DAW, instrument pads and a video maker — one browser music studio. What each module does and how to combine them.
Image Utilities
6 guidesFree, frictionless image tools — resize, convert, edit and transform, right in the browser.
Image ResizeResize photos to any dimensions the right way: pixels vs file size, why upscaling differs from downsizing, and the DPI mistakes everyone makes. Free tool included.Image ConverterWhich image format to use and when: JPG vs PNG vs WebP for photos, transparency and web speed. Convert between formats free, right in your browser.Image EditorWhat brightness, contrast, saturation and the core photo filters actually do to pixels — and how to combine them for fixes that look natural, not processed.Image to ASCII ArtThe 60-year-old technique behind turning photos into text art: how characters map to brightness, why monospace matters, and getting good results free.Image to SVG CodeWhat vectorisation actually does, when SVG beats PNG, and the images that trace cleanly. Free browser conversion from raster to SVG code explained.Image to Text OCRHow optical character recognition reads text from photos and scans, what kills accuracy, and how to transcribe documents free in your browser.
Converters & Generators
7 guidesHashes, bases, colours, units and secure secrets — the everyday conversion toolkit.
Online CalculatorWhat every scientific calculator function does — powers, roots, trig, logs — plus the order-of-operations rules that explain wrong answers. Free in-browser.Hash ConverterWhat hashing is, how SHA-256 differs from MD5, why passwords need slow hashes like Bcrypt and PBKDF2, and how salting defeats rainbow tables.Binary ConverterHow number bases work and why programmers care: binary for hardware, hex for humans. Convert any number between bases instantly, free in your browser.Color ConverterWhat colour codes actually encode: HEX vs RGB vs HSL, why designers think in HSL, and how to convert between colour formats free in your browser.Unit ConverterWhy unit conversion keeps going wrong (temperature, US vs imperial), the conversions worth memorising, and instant conversion across 10 categories.Text Encoding/DecodingWhat text encoding is and why it exists: Base64 for binary channels, percent-encoding for URLs, HTML entities for markup. Convert all three free in-browser.Password GeneratorWhat makes a password actually strong: entropy math, why length beats complexity, why reuse is the real killer, and how passphrases fix memorability.
Web & Network
6 guidesQR codes, weather, IPs, speed tests and live code — your connection to the wider internet.
QR Code GeneratorHow QR codes store data and survive damage, what the modules and corners mean, printing tips, and free QR generation for URLs and text.Weather CheckHow forecasts are actually made: observation networks, numerical models, why 10-day forecasts wobble, and how to read a forecast like a pro.IP DetectorWhat an IP address is, the difference between public and private IPs, how geolocation actually works and what your IP does — and does not — reveal.Net Speed TestWhat a speed test actually measures, why your "500 Mbps" plan feels slow, and the difference between bandwidth, latency and jitter explained.QR & Barcode ScannerHow camera-based code scanning works, why lighting and angles matter, one-dimensional vs two-dimensional codes, and scanning safety.HTML ViewerWhy writing HTML in a live sandbox teaches faster than tutorials: how the three languages divide the work, and how to experiment safely in-browser.
Audio & Productivity
4 guidesRecording, tones, notes and sketching — capture what is in your head.
Audio RecorderHow browser recording works, why your mic sounds better close up, which format to record in, and simple habits that fix most audio quality problems.Tone GeneratorWhat sound frequency actually is, how sine, square, triangle and sawtooth waves differ, and practical uses from speaker testing to hearing checks.Notes AppHow browser-storage note apps keep notes on your device, why that is both private and fragile, and habits that make quick notes actually useful.Online WhiteboardWhy thinking by drawing works, what a browser whiteboard covers, and the workflows where a fast free sketchpad beats a slide deck or document.
Sensors & Measurement
7 guidesLevels, angles, speed, sound and chance — the physical world, measured.
Coin TossHow random is a coin toss really? The physics, the 50.8% heads bias research, and why humans are terrible at inventing randomness.Advanced ClockHow time zones actually work: UTC, offsets, IST vs GMT, daylight saving, and why "9 am meeting" is ambiguous across borders.Spirit LevelHow bubble and phone levels work, why calibration matters, and the right technique for shelves, frames and appliances — plus when to distrust a sensor.InclinometerWhat an inclinometer measures, how pitch and roll describe orientation, degrees of slope in the real world, and measuring angles with your phone.GPS SpeedometerHow GPS measures speed, why it can be more accurate than your car’s speedometer, Doppler versus position differencing, and its real limits.Sound MeterWhat decibels actually measure, the logarithmic scale explained, dangerous exposure levels, and how accurately a phone measures noise.CPS TestHow clicks-per-second tests work, what separates casual from competitive clicking, jitter and butterfly techniques, and honest hardware limits.