Guides for practical browser-tool workflows
Short notes for common developer and marketing tasks, with links back to the tools that do the work locally.
How to Convert CSV to JSON Without Uploading Data
Turn pasted spreadsheet exports into JSON objects or row arrays while keeping data in your browser.
Read guide 1 min readHow to Build UTM Campaign Links for Google Ads and GA4
Use source, medium, campaign, term, and content without breaking destination URLs or existing query parameters.
Read guide 1 min readUnix Timestamp Seconds vs Milliseconds
How to tell whether a Unix timestamp is in seconds or milliseconds before converting it.
Read guide 1 min readHow to Calculate Days Between Dates
Count calendar days, weekdays, and date offsets without turning calendar dates into timezone surprises.
Read guide 1 min readHow to Decode Base64 Safely
Base64 is encoding, not encryption. Here is how to inspect UTF-8 text without over-trusting it.
Read guide 1 min readCommon JSON Formatting and Validation Errors
The most common reasons pasted standard JSON fails validation in a browser formatter.
Read guide 1 min readHow to Parse URL Query Parameters
Turn a long URL query string into decoded names and values you can inspect.
Read guide 1 min readUTM Source, Medium, and Campaign Examples
Practical UTM naming examples for paid search, email, newsletters, and social campaigns.
Read guide 1 min readWord Count vs Character Count
When to use word count, character count, reading time, and repeated-keyword checks.
Read guide 1 min readHow to Decode a JWT and Check Token Claims
Inspect a JWT header, payload, expiry time, and common claims without uploading the token.
Read guide 1 min readHow to Generate a Strong Random Password or API Token
Choose length, character sets, and token formats for passwords, API keys, and local test secrets.
Read guide 1 min readHow to Compare Text, Code, and JSON Locally
Use line, word, character, and JSON diff modes without uploading private snippets.
Read guide 1 min readHow to Convert Case and Clean Text Quickly
Fix uppercase, lowercase, title case, duplicate lines, and messy spacing without uploading text.
Read guide 2 min readHow to Compress an Image Without Uploading It
Reduce JPG, PNG, or WebP file size locally for forms, websites, email, and CMS uploads.
Read guide 1 min readHow to Merge PDF Files and Reorder Pages Locally
Combine PDFs, extract page ranges, remove blank pages, reorder pages, and rotate scans in your browser.
Read guide 1 min readHow to Convert JPG to PDF and PDF to JPG Locally
Combine photos or scans into a PDF, choose A4 or Letter pages, and export PDF pages as JPG images.
Read guide 1 min readHow to Convert an Image to Base64
Create a Base64 data URL from a small image and know when not to use one.
Read guide 2 min readHow to Create a QR Code for a URL
Make a scannable QR code for a landing page, campaign URL, menu, form, or event link.
Read guide 1 min readHow to Convert Text to Binary and Back
Turn UTF-8 text into binary bytes, decode binary text, and avoid common spacing mistakes.
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