Blog
SEO-friendly guides with FAQs, comparison tables, and links into ZeroKit tools. No paywall — open the post and jump to the relevant formatter, encoder, or AI flow.
- 2026-03-01·3 min read
How to Format JSON Online for Free (2026 Guide)
Format JSON in the browser without uploading your data — complete guide with tables and FAQ.
- 2026-03-02·2 min read
Why Privacy-First Developer Tools Win in 2026
Client-side tools, verification steps, and when server calls are unavoidable.
- 2026-03-03·2 min read
Base64 Encoding Explained — What It Is and When to Use It
Binary-to-text encoding, JWTs, data URLs, and Base64 vs encryption.
- 2026-03-04·2 min read
How to Compress Images for the Web Without Uploading Them
Core Web Vitals, WASM compression, formats, and batch workflow.
- 2026-03-05·2 min read
JWT Tokens Explained — Header, Payload, Signature
Claims, expiry, HS256 vs RS256, and why JWTs are not encryption.
- 2026-03-06·2 min read
Test Regex Without Sending Your Data to a Server
JavaScript RegExp in the browser, cheat sheet, and safe workflows.
- 2026-03-07·1 min read
Merge PDFs Without Uploading Them — Here's How
pdf-lib in the browser, reorder, download — compared to upload-based tools.
- 2026-03-08·1 min read
Cron Expressions — The Complete Guide with Visual Builder
Five fields, special characters, platform differences, and examples.
- 2026-03-09·1 min read
From Markdown to PDF — Export Notes and Docs Instantly
GFM features, export workflow, and when PDF beats Markdown.
- 2026-03-10·2 min read
5 AI Tools for Developers — Without Training on Your Code
Claude-powered tools, limits, and how they differ from general chat UIs.