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TriVisionTech

Apps

TriVisionTech designs and ships small, focused software - native Android apps on Google Play and free browser-based web tools. Everything we have published is below.

Productivity

Finance

Tools

Music & Audio

Photography

Food & Drink

Free web tools

Unit Converter

Convert length, weight, temperature, area, volume, speed, time, pressure, energy and data - instantly, in your browser.

Percentage Calculator

Percent of a number, percent change, discount price, and tip splitting - five common questions in one tool.

Compound Interest Calculator

See how savings grow over time with regular contributions and compound interest.

Image Resizer & Compressor

Shrink one photo or a whole batch to a target width and quality without uploading them anywhere.

Password Generator

Create long, random passwords in your browser - with a strength estimate and one-tap copy.

Hash Generator

Get the SHA-1, SHA-256 and SHA-512 digest of any text, computed locally.

Word & Character Counter

Live word, character, sentence and reading-time counts as you type.

Base64 Encoder / Decoder

Convert text to Base64 and back, with full Unicode support, in your browser.

Loan Calculator

Estimate the monthly payment, total cost and total interest on a fixed-rate loan.

Color Converter

Paste a colour in any common format and get HEX, RGB and HSL, with a live swatch.

Text Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.

JSON Formatter & Validator

Pretty-print, minify and check JSON for errors - locally, nothing uploaded.

URL Encoder / Decoder

Percent-encode text for safe use in URLs, or decode an encoded URL back to readable text.

Lorem Ipsum Generator

Generate paragraphs, sentences or words of classic Lorem Ipsum filler text.

Random Number Generator

Pick fair random numbers in any range, with an option for no repeats.

Age Calculator

Work out an exact age in years, months and days, plus the countdown to the next birthday.

BMI Calculator

Calculate Body Mass Index from height and weight, with the WHO category and a healthy-weight range.

UUID Generator

Generate random version-4 UUIDs (GUIDs), one or in bulk, instantly in your browser.

Unix Timestamp Converter

Convert Unix time (epoch seconds or milliseconds) to a readable date, or a date to a timestamp, instantly in your browser.

QR Code Generator

Turn any text or URL into a scannable QR code and download it as a PNG - instantly in your browser.

CPF Generator

Generate valid random CPF numbers with correct check digits, for testing forms and validation logic.

CNPJ Generator

Generate valid random CNPJ numbers with correct check digits, for testing forms and validation logic.

Test Credit Card Number Generator

Generate Luhn-valid fake card numbers, expiry dates and CVVs for testing payment forms.

Fake Person Generator (Brazil)

Generate a complete fake Brazilian profile: name, CPF, RG, address, phone and email, for testing.

LinkedIn Search URL Builder

Turn a target profile into a ready-to-open LinkedIn people-search link with the filters already applied.

Currency Converter

Convert between 150+ currencies using up-to-date reference exchange rates.

GitHub Repository Finder

Find the top open-source projects for any topic and language, ranked by stars, forks or recent activity.

Android Launcher Icon Generator

Turn text, an emoji or an image into a full set of Android launcher icons, ready to drop into your project.

Icon Library and Downloader

Search hundreds of thousands of open-source icons, recolour them and download SVG or PNG.

Background Remover

Cut out a plain or evenly-lit background and download a transparent PNG - no upload, no sign-up.

Photo Enhancer

Fix exposure and colour, sharpen, or one-click auto-enhance a photo - all in your browser.

Photo Collage Maker

Drop a few photos into a grid, set the spacing and shape, and download the collage as a PNG.

AI Image Generator

Describe a picture and get an AI-generated image you can download, using a free public service.