NEW GUIDE
Minecraft Pixel Art Generator: From Image to Build Plan
Turn an image into Minecraft pixel art, choose block dimensions, and read a concrete materials list.
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Get more from your local tools
Step-by-step workflows, checks and limitations for everyday data, links and images. All featured tools process input in your browser.
NEW GUIDE
Minecraft Pixel Art: Plan the Size, Palette and Materials
Compare Minecraft pixel art dimensions and estimate block stacks before starting a build.
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NEW GUIDE
Yes or No Wheel: Make a Quick Random Choice
Use a yes or no wheel for games and everyday choices, and understand what a random spin means.
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Developer Tools
How to Remove Duplicate Rows From a CSV File
A practical way to clean repeated spreadsheet exports without uploading the file.
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Developer Tools
CSV to JSON and Back: Preserve the Data You Need
Choose a structure and check headers, types, and escaping when converting files.
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Developer Tools
Sort JSON Keys for Cleaner Reviews and Diffs
Create stable object-key order while preserving array order and values.
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Developer Tools
How to Validate JSON Lines (NDJSON) Locally
Find invalid records without sending log exports to a remote validator.
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Developer Tools
Remove Tracking Parameters Without Breaking Useful Links
Remove campaign identifiers while keeping page paths, fragments, and useful query settings.
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Developer Tools
Build a URL With Query Parameters Safely
Avoid manual spaces and ampersand mistakes when constructing links.
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Developer Tools
Calculate and Compare a File SHA-256 Checksum
Use a cryptographic digest to spot changed files, with clear limits on what it proves.
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Developer Tools
Generate Random Tokens and UUIDs in Your Browser
Choose between an unpredictable secret and a unique public identifier.
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Design & Visual
Add a Text Watermark to an Image Locally
Create a labeled PNG while keeping the original image on your device.
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Design & Visual
Rotate, Flip, and Grayscale Images Without Uploading
Use simple Canvas edits for local images and export PNG copies.
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Text Tools
Extract Links and Email Addresses From Text
Pull addresses from pasted notes while checking false positives.
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Developer Tools
Base64 Encoding vs Encryption: Which Tool Should You Use?
Learn why readable data encoding, hashing, and encryption solve different problems.
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Text Tools
Remove Duplicate, Blank, and Messy Lines from Text
Clean a pasted list in a repeatable order without uploading it.
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Developer Tools
Test a Regular Expression Before Replacing Text
See matches first, then replace a copy of your text and inspect edge cases.
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Developer Tools
JSONPath Tester: What the Local Tool Supports
Use simple property and array index paths; recognize features that this tester does not implement.
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Design & Visual
Resize, Compress, or Convert an Image: Choose the Right Edit
Compare dimensions, JPEG quality, and output format for browser-based image exports.
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Color Tools
Check Text and Background Color Contrast
Read contrast ratios in context and keep human review in the accessibility workflow.
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Developer Tools
Convert Markdown to HTML Without Trusting Arbitrary Input
Understand the subset converter and inspect HTML before publishing it.
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Developer Tools
UUID vs ULID: Choose an Identifier Format
Compare random UUIDs and time-sortable ULIDs without treating either as a secret.
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