# ToolShake

> Code formatters and developer utilities alongside practical social media planners and calculators.

Every tool and article on ToolShake is free to use — no sign-up required. The links below are the primary, canonical resources on this site.

## Tools

- [Code Beautifier](https://toolshake.com/tool/code-beautifier/): Format and beautify messy code instantly. Supports JavaScript, HTML, CSS, JSON, XML, SQL, and Python with customizable indentation.
- [Diff Checker](https://toolshake.com/tool/diff-checker/): Compare two text blocks side by side and see differences highlighted. Perfect for code reviews and document comparison.
- [Markdown Editor](https://toolshake.com/tool/markdown-editor/): Write and preview Markdown in real-time with syntax highlighting. Export to HTML or copy formatted output for documentation.
- [SQL Formatter](https://toolshake.com/tool/sql-formatter/): Format and beautify SQL queries with proper indentation and keyword highlighting. Supports MySQL, PostgreSQL, and SQL Server.
- [JWT Decoder](https://toolshake.com/tool/jwt-decoder/): Decode and inspect JWT tokens. View header, payload, and verify signatures. Essential for debugging API authentication.
- [Cron Expression Generator](https://toolshake.com/tool/cron-expression-generator/): Build cron expressions visually with plain-English descriptions. Preview next 5 execution times to verify your schedule.
- [UUID Generator](https://toolshake.com/tool/uuid-generator/): Generate UUID/GUID values in v1, v4, and v5 formats. Create single or bulk UUIDs for databases and application IDs.
- [Timestamp Converter](https://toolshake.com/tool/timestamp-converter/): Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds with timezone selection.
- [IP Address Lookup](https://toolshake.com/tool/ip-address-lookup/): Look up IP address geolocation, ISP, and network information. Check your own IP or look up any IP address.
- [QR Code Generator](https://toolshake.com/tool/qr-code-generator/): Generate QR codes from URLs, text, WiFi credentials, or contact cards. Download as PNG or SVG in custom sizes and colors.
- [UTM Link Builder](https://toolshake.com/tool/utm-link-builder/): Free UTM Link Builder: create trackable campaign URLs with utm_source, medium, campaign, term, and content parameters. Instant URL encoding, one-clic…
- [Hashtag Generator & Counter](https://toolshake.com/tool/hashtag-generator-counter/): Generate hashtags from keywords and count them against Instagram, Twitter/X, LinkedIn, and TikTok limits. Free, instant, no sign-up needed.
- [Social Caption Character Counter](https://toolshake.com/tool/social-caption-character-counter/): Count characters, words, and lines in your social media captions against live limits for Twitter/X, Instagram, LinkedIn, TikTok, Facebook, and more. …
- [Engagement Rate Calculator](https://toolshake.com/tool/engagement-rate-calculator/): Calculate social media engagement rate from likes, comments, shares and followers or reach. Choose from multiple formulas. Instant, accurate results …
- [Best Time to Post Planner](https://toolshake.com/tool/best-time-to-post-planner/): Get a color-coded weekly heatmap of the best times to post on Instagram, TikTok, LinkedIn, Twitter, Facebook & YouTube — adjusted for your timezone.
- [Image Resizer for Social Platforms](https://toolshake.com/tool/image-resizer-for-social/): Resize and crop images to exact pixel presets for every major social network. Works 100% in your browser — Instagram, Facebook, Twitter, LinkedIn, Yo…
- [Content Calendar Generator](https://toolshake.com/tool/content-calendar-generator/): Generate a downloadable monthly content calendar with posting slots based on your frequency and themes. Free, instant, no signup needed.
- [Influencer Cost Estimator](https://toolshake.com/tool/influencer-cost-estimator/): Estimate fair influencer sponsorship pricing by platform, follower count, and engagement rate. Get instant CPM and CPE breakdowns in seconds.
- [CPM, CPC & ROAS Ad Calculator](https://toolshake.com/tool/cpm-cpc-roas-ad-calculator/): Free ad calculator: enter spend, impressions, clicks & revenue to instantly get CPM, CPC, CTR and ROAS. No sign-up, no nonsense — results in seconds.
- [Emoji & Special Character Picker](https://toolshake.com/tool/emoji-special-character-picker/): Search and copy emojis, special symbols, and fancy Unicode text styles (bold, italic, script, fraktur) for Instagram bios, TikTok captions, and more.
- [A/B Headline Tester](https://toolshake.com/tool/ab-headline-tester/): Compare two headlines instantly. Score them on power words, sentiment, clarity, and length to find which drives more clicks. Free A/B headline analyz…
- [Bio Link Page Builder](https://toolshake.com/tool/bio-link-page-builder/): Create a custom link-in-bio page with your brand colors and buttons. Export standalone HTML — no account needed, no limits.

## Articles

- [Best Way to Sound Professional on Every Call: g100.us](https://toolshake.com/sound-professional-calls-g100us/): Best way to look professional on calls: get a dedicated business number with g100.us for calls, SMS & WhatsApp in one dashboard. Live in seconds.
- [Best Business Phone Number for Dropshippers: g100.us](https://toolshake.com/best-business-number-dropshippers-g100us/): Get the best business number for dropshippers with g100.us: one number for calls, SMS & WhatsApp, 100+ countries, instant activation, from $4/week.
- [The Quiet Death of the Link in Bio — and What Replaces It](https://toolshake.com/quiet-death-of-link-in-bio/): Native in-app shopping and richer social profiles are quietly killing the link-in-bio strategy. Here's what's replacing it — and what you're trading …
- [A/B Testing Your Headlines: The Pre-Publish Checklist](https://toolshake.com/ab-testing-headlines-checklist/): Run every headline through this 10-point pre-publish checklist — length, emotional pull, specificity, false-promise test, and A/B tracking setup incl…
- [Anatomy of a Viral Post: How a Single Reel Can Reach Millions](https://toolshake.com/anatomy-of-a-viral-campaign/): Picture a small skincare brand with fewer than 40,000 Instagram followers posting a single Reel. Within a few days, it crosses two million views. The…
- [Your Social Media Questions, Answered: Algorithms, Reach, and Shadowbans](https://toolshake.com/social-media-questions-answered/): Honest Q&A on social media algorithms, reach drops, shadowbans, hashtags, and what actually works for creators in 2024.
- [CPM vs CPC vs ROAS: Which Ad Metric Should You Optimize For?](https://toolshake.com/cpm-vs-cpc-vs-roas/): CPM vs CPC vs ROAS: understand what each ad metric actually measures, which funnel stage it belongs to, and how to stop optimizing for the wrong numb…
- [How Much Should You Charge Brands as a Micro-Influencer?](https://toolshake.com/how-much-to-charge-as-micro-influencer/): Learn how micro-influencers should price brand deals — from follower tiers and engagement rates to usage rights and whitelisting add-ons. Quote with …
- [I Ran a Content Calendar for 90 Days — Here's What Changed](https://toolshake.com/i-ran-a-content-calendar-90-days/): I ran a structured content calendar for 90 days straight. Here's what changed — follower growth, client inquiries, and the sanity gains I didn't expe…
- [Social Media Image Sizes: A Complete Cheat Sheet for Every Platform](https://toolshake.com/social-media-image-sizes-cheat-sheet/): Current social media image sizes for every platform in 2024 — Instagram, Facebook, LinkedIn, TikTok, YouTube, Pinterest, X, and ad formats. Quick-ref…
- [Why Your Engagement Rate Looks Lower Than It Should (And It's Fine)](https://toolshake.com/why-engagement-rate-looks-low/): Engagement rate dropping as your audience grows? Here's why falling percentages often signal reach growth — and what metrics actually matter for crea…
- [Do Hashtags Still Matter in 2026? The Data Says Yes, But Differently](https://toolshake.com/do-hashtags-still-matter/): New 2025-2026 data reveals hashtags now work as content-classification signals, not discovery hacks. Here's what changed and how to adapt your strate…
- [How to Set Up UTM Tracking So You Actually Know What's Working](https://toolshake.com/how-to-set-up-utm-tracking/): Learn how to build a consistent UTM tracking system — naming conventions, a builder spreadsheet, GA4 setup, and how to read results that actually mea…
- [UUID vs Auto-Increment — Which to Use as Database Primary Key](https://toolshake.com/uuid-vs-auto-increment-database-key/): JWT tokens explained — how they work, security considerations, and best practices for API authentication and authorization.
- [Markdown Guide — Everything You Need to Know](https://toolshake.com/markdown-guide-everything-to-know/): SQL formatting standards and best practices. Readable SQL queries improve debugging, code reviews, and team collaboration.
- [Cron Expressions — Complete Guide to Scheduling Tasks](https://toolshake.com/cron-expressions-complete-guide/): Markdown writing guide — syntax reference, tips, and best practices for documentation, README files, and technical writing.
- [JWT Tokens Explained — Understanding JSON Web Tokens](https://toolshake.com/jwt-tokens-explained-understanding/): Guide to text diffing algorithms. How diff tools work, unified vs side-by-side views, and using diff in code reviews.
- [Code Beautifier Guide — Format HTML, CSS, and JavaScript Like a Pro](https://toolshake.com/code-beautifier-format-html-css-js/): Code formatting best practices for teams. Why consistent code style matters and how to enforce it with linters and formatters.

## About & Policies

- [About Us](https://toolshake.com/about-us/)
- [Contact Us](https://toolshake.com/contact-us/)
- [Privacy Policy](https://toolshake.com/privacy-policy/)
- [Terms of Service](https://toolshake.com/terms-of-service/)
- [Disclaimer](https://toolshake.com/disclaimer/)
- [Blog](https://toolshake.com/blog/)

## Notes

- Full URL list: https://toolshake.com/sitemap.xml
- Content is original and maintained by ToolShake. Attribution is appreciated when cited.