IMG-016
Duotone Effect
Map image brightness to a smooth two-color gradient to create bold duotone graphics. Select custom shadow and highlight colors, and adjust balance.
Open toolBrowser-based utilities
Welcome to Vayce
161 free tools for images, text and data. All running entirely in your browser.
161 tools No uploads No accounts
Featured tools
All 161 toolsIMG-041
Image Converter
Convert image batches to WebP, AVIF, JPEG, PNG, GIF, or ICO. Queue-based processing shows per-file progress and exports the results as a batch ZIP.
Open toolIMG-073
Progressive JPEG Converter
Convert PNG, JPEG, and WebP images to progressive JPEG files. Set output quality and max width, then export a single file or a ZIP batch.
Open toolTXT-039
QR Code Generator
Generate QR codes from text, URLs, or data. Customize colors, adjust error correction levels, and export as SVG or PNG.
Open toolTXT-056
Text Transformer
Transform text into camelCase, snake_case, PascalCase, or kebab-case. Convert cases instantly for programming variables.
Open toolTXT-067
Word Counter
Count words, characters, sentences, and paragraphs in a text block. Analyze reading time and keyword frequency.
Open toolVayce topics
Explore topicsTopic
What Happens When
A look inside the browser’s systems. Explore what really happens when you click, paste, upload, or scroll.
Browse topicTopic
Tools Of The Browser
Hands-on guides to the powerful Web APIs built into every browser, enabling dynamic and interactive web experiences
Browse topicTopic
Web Writing
Guides on how to write for the web. Each article breaks down the small mechanics that make text feel effortless on screen.
Browse topicTopic
Images for the Web
Guides on how to find, choose, create, and prepare images that look sharp, load fast, and fit naturally into modern websites.
Browse topicTopic
Made In The Browser
Inside the making of Vayce tools. Read how Vayce tools are built using browser APIs, workers, and local-first design.
Browse topicTopic
Guides And Insights
A collection of practical reads. From everyday tips to small discoveries worth exploring.
Browse topicLatest articles
Read the blog
7 min read
Image Effects: What to Use for Blur, Tint, Duotone, Pixelate, and More
Choose an image effect by the job: make text readable, unify a mixed set, hide details, turn a photo into a graphic, or pull focus.
Read article
5 min read
Duotone Effect: What It Is and How to Make One
A duotone effect maps shadows and highlights to two chosen colors. Learn when it helps web images, where it fails, and how to make one.
Read article
5 min read
Color Palette From Image: Get Brand Colors From Photos
Extract a color palette from an image by finding dominant, muted, dark, and light swatches. Use the result as a starting point for brand and UI colors.
Read article