Browse exact tasks, licensed drawings and font families by category.
Creator Utilities - names starting with: s. All names in this category. All categories.
Current Koldflux service signals and their limits.
Find the duration a clip becomes after a speed change, and the speed factor needed to hit a target duration.
Turn safe-zone percentages into exact pixel margins for your frame, so you can place guides in your editor.
Estimate how long a script will take to say out loud, and work backwards from a platform duration limit to the word count that fits.
Work out how many minutes of footage fit on a card or drive at a given bitrate.
Why your caption disappears behind the interface, how much of the frame each platform actually covers, and how to design around it.
Exact image dimensions for every social platform: banners, thumbnails, profile pictures, posts and stories - with a free resizer on every page. No upload, no login.
The correct Snapchat geofilter size is 1080×2340 pixels. Resize your own image to exactly that, free, without uploading it anywhere.
The correct Snapchat profile picture size is 320×320 pixels. Resize your own image to exactly that, free, without uploading it anywhere.
Everything for posting to Snapchat Spotlight: 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 Snapchat Spotlight's 250-character limit in real time. Free, nothing leaves your browser.
Snapchat Spotlight safe zone: top 15%, bottom 20%, sides 6% covered by the app's own interface. Free, nothing is uploaded.
Snapchat Spotlight spec at a glance: 1080 x 1920px, 9:16 aspect ratio, current maximum not established by the Spotlight help page, not publicly documented, 250-character caption limit. Free, no login.
Measure a local video's duration for Snapchat Spotlight. current maximum not established by the Spotlight help page. Runs in your browser; no upload.
Aspect ratio, maximum length, file size, safe zone and caption limit for every major social platform, in one dated, verifiable table. Free, and available as JSON.
Free browser subtitle tools: convert between SRT and WebVTT, shift timings that run early or late, and check captions for reading speed, overlaps and over-long lines. Nothing is uploaded.
Move every cue by a fixed offset to fix captions that run consistently early or late. Works on SRT and VTT, and writes back in the same format.
Convert a .srt subtitle file to WebVTT in your browser. Adds the WEBVTT header and switches the millisecond separator, leaving your caption text exactly as written.
Check a subtitle file for the things that make captions hard to read: cues that flash past too fast, overlapping timings and lines too long for a phone screen.
Strip the timings, indices and markup from a caption file and get plain paragraphs back - for show notes, a blog version or a script rewrite.