Articles tagged “privacy”

Toolew news

Why Toolew runs your tools in the browser

How Toolew processes files on your own device with JavaScript and WebAssembly, what that means for privacy and speed, and which tools use the network.

6 November 2026 · 4 min read

For developers

Regular expressions for beginners: patterns you will actually use

A practical introduction to regex: characters, classes, quantifiers, anchors, groups and flags, with real examples for validation, search and data cleanup.

4 November 2026 · 4 min read

Design

Colour contrast and accessibility: a WCAG guide for designers

What contrast ratios mean, how WCAG 2.x calculates them, the AA and AAA thresholds, common pitfalls with brand colours, and how to build an accessible palette.

2 November 2026 · 4 min read

Guides

QR codes that work: sizes, error correction, colours and UPI

How QR codes store data, how large to print them, which error-correction level to choose, how to add colours and logos safely, and how UPI payment QR codes are built.

30 October 2026 · 5 min read

Money & finance

SIP vs lump sum: what the maths really says

How SIP and lump-sum returns are calculated, why the annuity-due formula matters, what rupee-cost averaging does and does not do, and how to compare fairly.

27 October 2026 · 4 min read

Tutorials

Merge, split and compress PDFs privately in your browser

Step-by-step workflows for combining PDFs, extracting pages, reducing file size and signing documents, without uploading sensitive files anywhere.

24 October 2026 · 4 min read

Privacy & security

Strong passwords in practice: length, passphrases and breach checks

What actually makes a password strong, why length beats complexity, how passphrases work, and how to check if a password has appeared in a data breach safely.

21 October 2026 · 4 min read

Money & finance

EMI explained: how your loan instalment is calculated

Understand the EMI formula, why early payments are mostly interest, how tenure and rate change the total cost, and how prepayment saves money.

18 October 2026 · 4 min read

Guides

How to compress images without visible quality loss

Choose the right format, size and quality setting for photos, screenshots and graphics, and shrink images for websites, forms and email in your browser.

15 October 2026 · 4 min read

For developers

JSON formatting and validation: a practical guide for developers

Why JSON breaks, how to read parser errors, when to pretty-print or minify, and a repeatable workflow for cleaning API responses and config files.

12 October 2026 · 5 min read

Why Toolew runs your tools in the browser

Merge, split and compress PDFs privately in your browser

Strong passwords in practice: length, passphrases and breach checks

Why Toolew runs your tools in the browser

Regular expressions for beginners: patterns you will actually use

Colour contrast and accessibility: a WCAG guide for designers

QR codes that work: sizes, error correction, colours and UPI

SIP vs lump sum: what the maths really says

Merge, split and compress PDFs privately in your browser

Strong passwords in practice: length, passphrases and breach checks

EMI explained: how your loan instalment is calculated

How to compress images without visible quality loss

JSON formatting and validation: a practical guide for developers

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