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Browse our tools by category
DevStackIO organizes every free developer tool into focused categories so you can find the right utility fast. From encoders and formatters to generators, converters, and security tools, each category groups related helpers into a single place. All tools run entirely in your browser — nothing is uploaded to our servers, so your data stays private. Explore the sections below or head straight to the full tool list to see everything available.
Text and data encoding tools for converting between formats
10 toolsExplore
Code and data formatting, beautification, and validation tools
18 toolsExplore
Generate IDs, passwords, QR codes, random data, and more
16 toolsExplore
Convert between data formats, units, colors, and timestamps
24 toolsExplore
Security, cryptography, and authentication tools
19 toolsExplore
Image processing, optimization, and conversion tools
19 toolsExplore
General utilities and everyday helpers
6 toolsExplore
Text analysis, transformation, and comparison tools
17 toolsExplore
Network, HTTP, and IP tools for developers and admins
15 toolsExplore
Developer helpers for regex, git, permissions, and code analysis
8 toolsExplore
Financial calculators for interest, loans, investing, and savings
33 toolsExplore
Health calculators for BMI, body composition, fitness, and nutrition
4 toolsExplore
Date and time calculators for age, date arithmetic, scheduling, and history
7 toolsExplore
Math calculators: scientific, statistics, discounts, tips, and percentages
12 toolsExplore
Electrical calculators for wire gauge, voltage drop, and electrical code references
4 toolsExplore
PDF tools for merging, splitting, and creating PDFs from images
5 toolsExplore
Student calculators for GPA, grades, coursework planning, and study metrics
2 toolsExplore
Math question generator for practice, worksheets, and exam preparation across all education levels
1 toolsExplore