14 Tools · 0 API Calls · 100% Free

Browser Tools
That Actually Work

A powerful suite of developer & productivity tools that run entirely in your browser. Fast, private, and always free.

Our Services

14

Private Tools

100%

Client-Side

⚡

Instant Load

Why Use DevLK Tools?

🔐 Total Privacy

Unlike other tool sites, we don't upload your data to our servers. All processing — from image compression to password generation — happens directly in your browser.

🚀 Zero Latency

Because there are no API calls or server-side processing, our tools respond instantly. Your sensitive data never even leaves your network.

🛠 Professional Grade

Built for developers, by developers. We use modern Web APIs like Web Crypto, Canvas, and TF-IDF scoring to ensure professional results every time.

Showing all 14 tools

Image Compressor

Compress and resize JPG, PNG & WebP images directly in your browser using the Canvas API. No upload to any server.

Grammar Checker

Rule-based grammar and style checker. Detects double words, common misspellings, misused phrases and more. Instant feedback.

Text Summarizer

Extractive AI summarization using TF-IDF sentence scoring. Paste any article and get a concise summary — your choice of length.

Password Generator

Generate cryptographically secure passwords using the Web Crypto API. Configure length, symbols, ambiguous chars and more.

Crypto Secure →

Word & Char Counter

Real-time word, character, sentence, paragraph counting with estimated reading time. Great for articles and SEO writing.

Pretty-print, minify and validate JSON in one click. Color-coded output with detailed error messages for invalid JSON.

Base64 Encoder/Decoder

Encode text or files to Base64 and decode Base64 back to readable content. Supports file input with drag & drop.

Text + File →

Color Palette Generator

Generate harmonious color palettes — analogous, complementary, triadic or monochromatic — from any seed color using HSL math.

QR Code Generator

Generate scannable QR codes from any URL or text. Powered by a hand-rolled QR algorithm — no external libraries or CDN needed.

Markdown Previewer

Live side-by-side Markdown to HTML preview. Supports headings, bold, italic, code, lists and links. Copy output HTML instantly.

Live Preview →

Convert between units of length, weight, temperature, speed, and data size. Instant results with high-precision output.

5 Categories →

Convert text between all common cases: UPPER, lower, Title, camelCase, snake_case, kebab-case and PascalCase simultaneously.

Generate SHA-1, SHA-256 and SHA-512 cryptographic hashes using the native Web Crypto API. Results update as you type.

Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Shows UTC, local time, ISO format and relative time.

Date & Time →