Browse exact tasks, licensed drawings and font families by category.
Creator Utilities - names starting with: f. All names in this category. All categories.
Existing Koldflux Free creator tools resource.
Free, no-upload tools for TikTok, Reels, Shorts and every short-form platform: converters, croppers, compressors, image sizes, safe zones, caption limits and text utilities. No login, no watermark, no daily limit.
Convert between a duration, a frame rate and a total frame count - useful when an editor reports frames and an upload limit is in seconds.
Free video, audio and image format converters. Everything runs in your browser - no upload, no login, no watermark.
Every audio format conversion, running free in your browser. No upload, no login.
Every image format conversion, running free in your browser. No upload, no login.
Every video format conversion, running free in your browser. No upload, no login.
Every video to audio format conversion, running free in your browser. No upload, no login.
Everything for posting to Facebook Reels: aspect ratio and length limits, a safe-zone overlay, a caption checker, format compatibility answers and free browser-based cropping and compression. No login.
Check your caption against Facebook Reels's 63,206-character limit in real time. Free, nothing leaves your browser.
Facebook Reels safe zone: top 10%, bottom 35%, sides 6% covered by the app's own interface. Free, nothing is uploaded.
Facebook Reels spec at a glance: 1080 x 1920px, 9:16 aspect ratio, no single Reel length cap in the unified video publishing flow, ~4 GB, 63206-character caption limit. Free, no login.
Measure a local video's duration for Facebook Reels. no single Reel length cap in the unified video publishing flow. Runs in your browser; no upload.
The correct Facebook cover photo size is 820×312 pixels. Resize your own image to exactly that, free, without uploading it anywhere.
The correct Facebook event cover size is 1920×1005 pixels. Resize your own image to exactly that, free, without uploading it anywhere.
The correct Facebook post image size is 1200×630 pixels. Resize your own image to exactly that, free, without uploading it anywhere.
The correct Facebook profile picture size is 170×170 pixels. Resize your own image to exactly that, free, without uploading it anywhere.
Answer-first troubleshooting for the problems that come up when publishing short-form video: uploads that fail, blurry exports, cropped frames, oversized files and format errors - compare likely causes, check what can be measured and find a relevant tool.
Turn a link or text into a downloadable QR code entirely in your browser. Free, no login, no watermark.
Fancy text, case conversion, hashtag counting, emoji stripping and more - all free, all running in your browser with no login.
Turn plain text into bold, italic, monospace, circled, squared, fullwidth, strikethrough or underlined Unicode styles you can paste into any bio or caption.