Free online tools for developers and creators, plus a local-first audio workspace.
GeeksKai is a multilingual Next.js application combining practical browser tools, an SEO-focused content system, and the Geekskai Audio Toolkit for local-first batch audio preparation.
- Online tools: text, image, document, developer, finance, media, VIN and other focused utilities.
- SoundCloud workflows: track download preparation, MP3, WAV, playlist and artwork tools with localized SEO pages.
- Audio Toolkit: local-first audio preparation for private batch workflows.
- Blog and guides: MDX content with search metadata, structured data and sitemap generation.
- Multilingual routes: configured locale routes such as
/en/,/fr/,/es/,/de/,/ja/,/ko/,/no/and/zh-cn/.
Product screenshots are kept in screenshots/.
| Desktop homepage | Mobile homepage |
|---|---|
 |
 |
The homepage OG image is public/static/images/og/geekskai-home.png. The shared site and blog fallback image is public/static/images/geekskai-blog.png.
OG metadata is defined close to each route so title, description, canonical URL and locale stay aligned.
- Site defaults and shared social banner:
data/siteMetadata.js - Localized homepage metadata and OG image:
app/[locale]/layout.tsx - Tool-page metadata and Twitter cards: each
layout.tsxunderapp/[locale]/tools/ - SoundCloud metadata and JSON-LD:
data/soundCloudSeo.tsand SoundCloud tool layouts - OG assets:
public/static/images/og/ - Canonical URLs, robots and sitemap:
app/robots.ts,app/sitemap.tsandapp/sitemap-config.ts
When adding a page, provide a stable canonical URL, localized title and description, an OG image with meaningful alt text, and matching Twitter Card metadata.
Next.js App Router, TypeScript, React, Tailwind CSS, Contentlayer 2, MDX, next-intl, Pliny and Vitest. Optional integrations include Neon, PayPal and Clerk.
Requirements: Node.js, Yarn and Python 3 for the source archive helper.
git clone https://github.com/geekskai/blog.git
cd blog
yarn
yarn devUseful checks:
yarn typecheck
yarn test
yarn buildyarn build runs Contentlayer and the production Next.js build. RSS generation is not part of the build pipeline.
app/ Next.js routes, localized tools and metadata
components/ Shared UI and product components
data/ Site metadata, tool data and MDX content
layouts/ Blog and content layouts
lib/ Domain logic, SEO helpers and integrations
public/static/ Logos, screenshots and OG image assets
scripts/ Maintenance and indexing utilities
screenshots/ Product screenshots used by documentation
Create blog content in data/blog/ with front matter containing title, date, tags, draft and summary.
Copy relevant values from .env.example into a local .env file and never commit credentials. Deploy to Vercel or another Next.js-compatible host after configuring required environment variables, then verify localized metadata, OG images, sitemap and provider-backed workflows.
For a shareable source archive:
yarn archive:sourceKeep changes scoped, preserve route and metadata conventions, and run relevant checks before submitting a pull request. The project is released under the MIT License © GeeksKai.