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Convert, merge, split, and manage PDF files.

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Compress, resize, convert, and edit images.

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QR codes, URL shorteners, and link utilities.

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Text Tools

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Developer Tools

JSON, XML, encoding, and dev utilities.

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File Tools

ZIP, metadata, checksums, and file utilities.

ZIP Extractor ZIP Creator File Metadata Viewer File Checksum Generator
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Percentage Calculator GST Calculator EMI Calculator Loan Calculator
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Blog

Tips, guides, and updates from Flixfer.

Tips & Tricks

How to Reduce Image File Size Without Losing Quality: The Complete Guide

Oversized images are the single biggest avoidable cause of slow website loading. This complete guide covers every technique for reducing image file size — from choosing the right format to optimising compression settings — without any visible quality loss.

Jun 20, 2026 4 min read 9 views
Tips & Tricks

How to Optimize PDF Files for Email Attachments

Email attachment limits are one of the most common practical frustrations in business communication. This guide shows you exactly how to reduce PDF file sizes to fit within any attachment limit without any visible quality loss.

Jun 19, 2026 3 min read 9 views
Developer Guides

JSON vs XML: Which Data Format Should You Use and When?

JSON and XML are the two dominant data interchange formats on the web. While JSON has largely won the API wars, XML still dominates in specific industries. This guide explains the differences, strengths, and when to use each one.

Jun 18, 2026 4 min read 8 views
Tips & Tricks

How to Calculate GST in India: A Simple Guide with Examples

GST (Goods and Services Tax) is now a fundamental part of every business transaction in India. Whether you're a freelancer raising an invoice, a retailer pricing products, or a consumer wanting to understand your bill, this guide explains GST calculation with clear examples.

Jun 17, 2026 3 min read 17 views
Tips & Tricks

10 Ways to Reduce PDF File Size Without Losing Quality

Large PDF files can be a headache — slow to upload, impossible to email, and frustrating to share. Here are 10 proven methods to shrink your PDFs while preserving readability and quality.

Jun 17, 2026 3 min read 14 views
Developer Guides

Regular Expressions (Regex) Tutorial: From Beginner to Practical Use

Regular expressions are one of the most powerful and most-feared tools in a developer's toolkit. This beginner-friendly tutorial demystifies regex syntax, explains common patterns, and gives you practical examples you can use immediately.

Jun 16, 2026 2 min read 21 views
Privacy & Security

How to Create a Strong Password: The 2024 Expert Guide

The average person has over 100 online accounts — yet most use fewer than 5 unique passwords. This guide explains exactly what makes a password strong, how attackers break weak ones, and the best system for managing secure passwords across all your accounts.

Jun 15, 2026 4 min read 15 views
Small Business

How to Protect Confidential PDF Documents Before Sharing

Whether you're sharing a contract, a financial report, or sensitive client data, protecting your PDF documents before sending is a critical professional and security practice. This guide covers every method available.

Jun 14, 2026 4 min read 14 views
Tutorials

How to Compress a PDF Without Losing Quality (Step-by-Step Guide)

Large PDF files are one of the most common file-management frustrations. This guide explains exactly how compression works, what causes PDFs to be large in the first place, and how to reduce them without any visible quality loss.

Jun 13, 2026 4 min read 13 views
Tips & Tricks

How to Improve Website Speed: The 2024 Complete Checklist

Page speed is a confirmed Google ranking factor and a critical driver of user experience and conversion rates. This comprehensive checklist covers every major optimization available — from images and fonts to server configuration and caching.

Jun 12, 2026 4 min read 10 views
Privacy & Security

How to Send Large Files Securely: The Complete Guide

Email attachments have a 25MB limit. Cloud sharing links can be intercepted. WhatsApp compresses images. This guide explains every method for sending large files securely — with a focus on privacy, reliability, and ease of use.

Jun 11, 2026 3 min read 13 views
Tutorials

How to Merge PDF Files Online for Free (No Software Required)

Merging multiple PDF files into one used to require expensive desktop software. With Flixfer's free online PDF Merge tool, you can combine PDFs instantly in your browser — no downloads, no sign-up needed.

Jun 10, 2026 2 min read 16 views