The ToolShack App Library

Combine multiple PDF files into one document. Fast, private, and works entirely in your browser. No uploads required.

Convert images to PDF documents. Combine multiple JPEG, PNG, or GIF images into a single PDF file.

Convert PDF pages to high-quality images. Extract pages as PNG or JPEG files from any PDF document.

Format and validate JSON data for debugging, config files, and data analysis. Makes complex data easy to read.

Reduce image file sizes for faster websites, email attachments, and storage savings. Works with PNG, JPG, and WebP.

Create QR codes for website links, contact info, WiFi passwords, or plain text. Download in multiple formats.

Generate matching color schemes for presentations, documents, websites, and design projects. Export to multiple formats.

Extract exact colors from any image. Click on a pixel to get HEX, RGB, and HSL values for design matching.

Convert text to Base64 or decode Base64 strings. Useful for email attachments, data embedding, and simple encoding tasks.

Count words, characters, sentences, and paragraphs. Calculate reading time and speaking time for any text.

Generate secure, random passwords with customizable length and character types. Cryptographically secure.

Encode and decode URLs, query parameters, and special characters. Essential for web development and API work.

Convert text between uppercase, lowercase, title case, camelCase, snake_case, kebab-case, and more formats.

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files. Secure cryptographic hash generator.

Generate unique identifiers (UUIDs) in v4 (random) and v1 (time-based) formats. Perfect for database keys and session IDs.

Create beautiful CSS gradients with a visual editor. Generate linear, radial, and conic gradients with custom colors.

Resize images to any dimension with preset sizes for social media, web, and print. Maintain aspect ratio or set custom sizes.

Convert images between PNG, JPG, WebP, GIF, and BMP formats. Adjust quality settings and compare file sizes.

Split PDF files into individual pages or extract specific page ranges. Free online PDF splitter with no uploads required.

Reduce PDF file size while maintaining quality. Free online PDF compressor that works entirely in your browser.

Decode and inspect JSON Web Tokens (JWT). Parse header, payload, and signature data securely.

Convert Unix Epoch timestamps to local and UTC dates instantly in your browser.

Compress your stylesheets instantly to improve load times. Processing is done securely.

Compress your JavaScript instantly to improve page load times. Completely client-side.

Safely encode special characters to HTML entities, or decode them to raw HTML.

Create and verify highly secure Bcrypt password hashes entirely in your browser.

Transform spreadsheet data into workable JSON output instantly.

Preview your markdown as you type, and instantly export perfectly formatted HTML code.

Quickly generate beautiful, random placeholder text for your web designs or mockups.

Compress your SVG files to improve load times by removing unnecessary metadata.

Instantly find the differences between two blocks of text or code.

Format, beautify, and validate XML data instantly in your browser.

Test, build, and debug regular expressions with real-time highlighting.

Format and beautify messy SQL queries for Postgres, MySQL, and SQLite.

Translate complex Cron expressions into human-readable text.

Instantly calculate percentages, percentage increases, and differences.

Convert lengths, weights, and temperatures between metric and imperial scales.

Convert color formats between HEX, RGB, and HSL instantly.

Convert images to Base64 strings for easy embedding into your code.

Parse and extract hostnames, paths, and query parameters from complex URLs.

Convert PNG images with transparent backgrounds to high-quality JPGs instantly.

Convert JPG photos to lossless PNG format entirely in your web browser.

Convert WEBP files into universally supported PNG images securely and fast.

Compress heavy PNGs into next-gen WEBP format to save space and boost performance.

Fix upside-down or sideways pages in your PDF natively without uploading files.

Calculate GPT, Claude, and Gemini tokens from your prompts instantly. Compare API costs per 1M tokens natively in your browser.

Construct highly optimized, clearly structured AI system prompts to get better outputs from ChatGPT, Claude, and Gemini.

Convert flat JSON arrays into valid JSONL (JSON Lines) required by OpenAI and Anthropic for model fine-tuning.

Slash your LLM API token footprint. Minify AI prompts by stripping stop-words, whitespace, and fluff while retaining semantic meaning.

Stop guessing syntax. Visually construct Midjourney V6 prompts, Aspect Ratios, and Negative commands with an intuitive GUI.

Build precise SD 1.5 and SDXL prompts. Auto-inject keyword weights (1.2), configure negative prompts, and adjust CFG Scale visually.

Transform unreadable JSON data exports (like ChatGPT conversations.json) into beautiful, shareable HTML web pages.

Prepare massive text documents for Vector Databases. Mathematically slice text by exact LLM token counts with adjustable overlaps.

Generate highly constrained ChatGPT prompts to accurately document JavaScript, Python, Go, and Java code automatically.