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
165 free tools for images, text and data. All running entirely in your browser.
165 tools No uploads No accounts
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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-042
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-059
Text Transformer
Transform text into camelCase, snake_case, PascalCase, or kebab-case. Convert cases instantly for programming variables.
Open toolTXT-071
Word Counter
Count words, characters, sentences, and paragraphs in a text block. Analyze reading time and keyword frequency.
Open toolVayce topics
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What Happens When
A look inside the browser’s systems. Explore what really happens when you click, paste, upload, or scroll.
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Tools Of The Browser
Hands-on guides to the powerful Web APIs built into every browser, enabling dynamic and interactive web experiences
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Web Writing
Guides on how to write for the web. Each article breaks down the small mechanics that make text feel effortless on screen.
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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.
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Made In The Browser
Inside the making of Vayce tools. Read how Vayce tools are built using browser APIs, workers, and local-first design.
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Guides And Insights
A collection of practical reads. From everyday tips to small discoveries worth exploring.
Browse topicLatest articles
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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.
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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.
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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.
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