All sites

metamask.io

The most widely used Ethereum and EVM-chain browser extension wallet, the de-facto entry point to DeFi and NFTs.

coingecko.com

Comprehensive crypto market aggregator.

chat.openai.com

OpenAI flagship chat model.

jsonformatter.org

Format & validate JSON.

ilovepdf.com

PDF merge, split, compress, convert.

notion.so

The block-editor pioneer that unifies docs, databases, kanban boards and calendars in one workspace. Built-in AI blocks summarize, rewrite and query the whole library, while a mature template community shortens setup. Works equally well as a personal second brain or as a company-wide wiki and product hub.

typora.io

A WYSIWYG Markdown editor that renders styles inline so there is no split-view to distract you, with fast startup and local files. Exports to PDF, Word and HTML stay typographically clean, and math, flowcharts and Mermaid are all supported. Still the steadiest desktop choice for heavy Markdown writers.

handbrake.fr

A twenty-year-old open-source video transcoder whose cross-platform GUI makes H.264, H.265 and AV1 encoding as easy as drag-and-drop. Preset management, chapters, subtitles and batch jobs are all there, making it the default for Blu-ray rips, legacy archive conversion and iPhone-friendly exports.

cloudconvert.com

A veteran online converter handling over 200 formats spanning docs, images, audio, video, CAD and subtitles. Its open API and Zapier integrations make it a workflow primitive, while individual users get 25 free conversions a day, plenty for ad-hoc needs.

figma.com

The de facto industry standard for collaborative design: real-time multiplayer UI design, prototyping, component libraries, design tokens and auto-layout all live in the browser. Dev Mode hands off cleanly to engineering, while FigJam and Figma Slides absorb whiteboarding and decks. Now an Adobe property, still independently operated.

deepl.com

DeepL sets the ceiling for European-language translation, with German-French-English pairs nearing native editorial quality. Glossaries, DeepL Write rewriting and layout-preserving PDF and Word translation close the loop for professional document workflows. Paid tiers target enterprises, universities and cross-border teams.

itellyou.cn

MSDN ITellYou is a long-running community-maintained mirror that aggregates official Microsoft ISOs for Windows, Office, Visual Studio and Server, complete with SHA-1 checksums so you can verify nothing has been tampered with. The clean-source first stop in China for fresh installs and legacy maintenance.

unsplash.com

Unsplash (unsplash.com) is a photography and image-resource destination for brand websites, social posts, landing-page heroes, blog covers and e-commerce visuals. Before production use, check the license, attribution requirement and commercial scope for each asset. It is best treated as a fast discovery layer for editors, designers and marketing teams that need credible visual material quickly.

freepik.com

Freepik (freepik.com) focuses on vector illustrations, PSDs, SVGs or editable graphic assets for UI empty states, marketing posters, product explainers, brand visuals and editorial images. Review whether remixing and commercial use are allowed, then use it to keep illustration style consistent while speeding up design output.

iconfont.cn

Alibaba Iconfont (iconfont.cn) provides icons, symbols or emoji assets for front-end components, admin systems, app navigation, README badges and brand documentation. Professional use should consider style consistency, SVG editability, on-demand loading and license boundaries, all of which improve interface clarity and reduce visual noise.

pexels.com

Pexels Videos (pexels.com) is a source for stock footage, motion templates or animated visual assets suited to ads, short-video intros, website backgrounds, product promos and social content. Filter by resolution, frame rate, license scope and commercial availability to quickly fill gaps in footage and motion storytelling.

youtube.com

YouTube Audio Library (youtube.com) offers music, background tracks, sound effects or AI audio capability for short videos, podcasts, audiobooks, games, courses and commercial ads. Always verify copyright, attribution, platform whitelisting and commercial permission before publishing; it can lower production cost and help standardize a team's sonic identity.

sketchfab.com

Sketchfab (sketchfab.com) helps source 3D models, materials, HDRIs, characters or animation assets for Blender, Unity, Unreal, product rendering, architecture visualization and interactive landing pages. Check formats, polygon counts, texture resolution, PBR readiness and licensing before use to shorten modeling and asset-prep cycles.

fonts.google.com

Google Fonts (fonts.google.com) is a font discovery, download or hosting resource for brand systems, web typography, posters, decks and content design. Fonts carry stricter licensing risk than images, so commercial use should confirm license terms, embedding rights, weight coverage and CJK character completeness before adoption.

slidesgo.com

SlidesGo (slidesgo.com) provides slide templates, Google Slides themes, presentation assets or AI-powered deck creation for fundraising, classes, project reports, marketing pitches and meeting material. Teams can use it to standardize layout, charts and narrative structure, turning rough notes into presentation-ready output quickly.

wallhaven.cc

Wallhaven (wallhaven.cc) offers desktop, mobile, widescreen or animated wallpapers for device personalization, visual inspiration, content backdrops and mood-board research. Check resolution, crop ratio, copyright and watermarks before reuse; high-quality wallpaper libraries can also inspire brand visuals and poster composition.

coursera.org

Coursera (coursera.org) is a structured online-learning resource for career switching, university catch-up, skill advancement and self-study planning. Evaluate curriculum depth, instructor credibility, certificate recognition, practice projects and community support before committing to a long-term learning path.

freecodecamp.org

freeCodeCamp (freecodecamp.org) focuses on programming, cloud, data, AI and engineering practice for beginners, interview prep, stack refreshes and team training. Prioritize hands-on projects, code quality, update cadence and community activity to turn scattered knowledge into shippable skills.

behance.net

Behance (behance.net) offers learning resources for design, taste, interaction, branding and creative workflow. Best for UI/UX beginners, visual upskilling, portfolio refinement and design-system education. Look for case breakdowns, assignment feedback, industry methodology and tool practice.