7 free tools · No sign-up
Free tools for video creators
Check Reels, TikTok and Shorts safe zones, calculate bitrate and file size, preview crops and fix subtitles. Everything runs in your browser; your files never leave your device.
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Tool Safe zone checker
Keep text clear of the app UI Runs in your browserReels · TikTok · ShortsPNG + ZIP templates -
Tool Video bitrate calculator
Know the file size before you export What is it for? See how big your video will be and whether it fits an upload limit, before you export. Runs in your browserMB · GB · MbpsFFmpeg command -
Tool Aspect ratio & crop
Reframe 16:9 for vertical What is it for? Shows how a horizontal video gets cropped for a phone screen. Runs in your browser9:16 · 4:5 · 1:1 -
Tool SRT subtitle checker
Find subtitle errors in one click What is it for? Finds garbled characters and lines that are too long or too fast in a subtitle file. Runs in your browserSRT · VTT -
Tool WebP to JPG converter
Turn WebP into JPG in one go What is it for? Turns .webp images that won't open into JPG or PNG; nothing is uploaded. Runs in your browserWebP · AVIF · PNG → JPGZIP -
Pack Free SFX pack
40 edit-ready sounds What is it for? Short free sounds for transitions and accents in your edits. 40 sounds · WAVCommercial use OK -
Pack Free LUT pack
Consistent color in one step What is it for? Ready-made color looks that grade your footage in one click. 5 LUTs · .cubePremiere · DaVinci · CapCut
Use these tools in AI assistants (MCP)
The safe zone, text position, bitrate, subtitle and export-settings checks are also available as a free remote MCP server, Rast Creator Tools. Add the endpoint below to an assistant or client that supports remote MCP servers (Streamable HTTP, no sign-in). It stores nothing and each answer links back to the matching tool page.
https://rast-creator-tools-mcp.studio-c25.workers.dev/v1/mcpRather have the video made for you?
Rast Creative Studio is a video production and social media studio based in Serdivan, Sakarya, Türkiye. These are the checks we use there every day. If you need a brand film, product video or a steady stream of vertical content, tell us about your project, in English or Turkish.