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GraalVM is an advanced JDK with ahead-of-time Native Image compilation. It produces native executables that use less memory and CPU than a JVM, contain only needed code, start instantly, and package compactly. Popular frameworks and cloud SDKs support it.
Heynote is a dedicated scratchpad for developers that functions as a large persistent text buffer divided into blocks. Each block can have its own language mode for syntax highlighting and auto-formatting, and math blocks serve as calculator scratchpads. Multiple note buffers can be created and organized into directories, and inline images can be pasted, resized, and annotated. It is available for Mac, Windows, and Linux.
Hover.css is a collection of CSS3 powered hover effects to be applied to links, buttons, logos, SVG, featured images and so on. Effects are available in CSS, Sass, and LESS, and many use CSS3 transitions, transforms and animations. Old browsers that don't support these features may need extra attention for a fallback hover effect.
An online tool that converts JPG, PNG, GIF and BMP bitmap images to SVG vector graphics, described as a free alternative to Vector Magic. The site lists multiple conversion styles and instant download with no registration required. Supported files have a maximum size of 10MB, and free conversions are limited to five, after which access requires contacting the operators.
JSON Hero is a web-based JSON viewer that presents JSON files in a UI with extra features. It infers what strings represent, such as images, dates, colors, URLs and videos, shows related values for fields, and generates an inferred JSON schema. It supports searching the whole file and sharing documents, and is open source.
LDtk is an open-source 2D level editor for indie developers, focused on user-friendliness. It organizes levels into worlds, supports customizable entities, auto-rendering rules and Aseprite files, and exports PNG images with JSON data. It targets platformer and top-down perspectives and can be used free of charge without limitation.
A browser-based tool that generates HTML meta tags for single-page apps, using Open Graph and Twitter web standards. It also produces social media posts and stores the last generated form in localStorage. Inputs cover title, description, keywords, URL, image URL, author and Twitter username.
Mossaik creates abstract SVG backgrounds with waves for websites, mobile devices, tablets, laptops and presentations. Options include the number of waves, angle, color and color mode, and designs can be exported as SVG or PNG images. The editor is launched from the site.
OneLinePlayer is a free web video player for Vimeo and Dropbox videos. It uses a direct link to a video file and offers preview images, player style adjustments, and controls such as autoplay, loop and mute. A GIF mode is available. The makers state they are not a video hosting platform. Certain Vimeo controls customization requires a Vimeo Plus plan or above.
Overscript is a catalog of anonymous futaba-style bulletin board scripts, listing known imageboard and textboard software. It offers a tarball archive and a git mirror, and is published under the GNU GPLv3 License.
A service that generates placeholder images for designs as sub-kilobyte Scalable Vector Graphics (SVG). Image URLs define size, colours, and an optional short label, and images can be requested in any size or colour.
Podman Desktop is an open source graphical tool for developing on containers and Kubernetes. Available on Linux, macOS and Windows, it lists, searches, runs and stops containers, builds and pulls images, and starts pods. It supports OCI and Compose standards and can spin up local Kind or Minikube clusters.
Renderforest is an AI-powered creative platform for making videos, designs, and websites. It offers AI video, image, and audio generation, over 1200 video templates, an AI video editor, AI website builder, and logo generator. The pricing page lists Lite, Pro, and Business plans, with a free plan available.
Reocities is a free host for hand-made websites, offering a subdomain, a file manager, a visual builder and optional tooling. Sites are static, serving HTML, CSS, JavaScript, images, audio and video as uploaded files. It also provides an HTTP API, an MCP server and optional custom domains and visitor translation.
Stylify Me is an online style guide generator created to help designers quickly gain an overview of a site's style guide, including colours, fonts, sizing and spacing. It presents text colours, typography, and image dimensions.
SVGFast converts PNG and JPG images into SVG vectors. It offers unlimited conversions without sign-up and free API access during the beta after signing in with Google or GitHub. The API returns optimized SVG from the same engine, with keys sent in an authentication header.
SVGX is a free desktop SVG icon and asset manager for Mac and Windows. It searches SVG icons across nested folders, previews and zooms files, edits markup inline, and offers dark mode. It copies markup or URL-encoded code, generates background-image CSS, previews background repeat values, and optimizes SVGs with SVGO. It includes recents, bookmarks, and export to SVG or PNG.
Tiled is a free and open source level editor with object layers, tile layers, and rule-based tile and object placement. It supports orthogonal, isometric and hexagonal maps, infinite maps, and world organization. The editor can be extended with JavaScript, and it exports to Image, JSON, Lua, GameMaker, Defold, tBIN and other formats.
Tilesetter is a tool for generating complete tilesets from base images and for building and exporting levels to Unity, Godot and GameMaker Studio 2. It offers automatic compositing that updates tilesets from parameters, and map editing that fixes tiles while drawing. The documentation covers version 2.0.0 and older releases.
Vector Magic is a raster-to-vector conversion tool available as a browser-based Online Edition and a stand-alone Desktop Edition. It automatically traces JPG, PNG, BMP and GIF bitmap images into full-color SVG, EPS and PDF vectors, with review and editing before download; the desktop edition also produces AI and DXF. Downloads in the Online Edition require a subscription.
