TextBehindImg is a free online image text editing tool whose core purpose is to place text behind people or objects in a photo, creating the common "text behind the subject" poster effect. According to the official introduction, using it does not require Photoshop or professional design skills, nor does it require registering an account; upload an image, add text, and the AI will automatically place the text behind the subject.
Main capabilities
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AI automatic subject recognition: After uploading a photo, the AI automatically detects the subject of the image within the browser. You can switch with one click between Behind mode (text hidden beneath the subject) and Normal mode (text above the subject), with no need for manual selection or masking.
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Text and fonts: You can click Add Text to create a text layer and enter text. The font library contains 150+ fonts, and you can set font size, color, and alignment; it supports per-layer adjustment of letter spacing, rotation, bold, italic, and underline.
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Presets and effects: It provides 36 one-click text presets (such as Neon, Vintage, Fire, Chrome, Matrix, Minimal, etc.), each preset already paired with font, color, and letter spacing; there are also 10 text effects, including Cutout, 3D Shadow, Mirage, Cinematic, Distortion, etc.
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Advanced text controls: You can split words into individual letters (Split to Characters), with each letter becoming an independent layer that can be moved, rotated, colored, or have effects applied individually. It supports blend modes (Overlay, Screen, Multiply, Soft Light, Dodge, Difference, and 7 in total), allows adding 3D depth with a depth slider, and applies perspective skew to text from the left, right, top, and bottom directions.
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Color picking and image filters: It provides an eyedropper tool to sample colors directly from the photo (supported in Chrome and Edge). The image filters tab can separately adjust brightness, contrast, and saturation for the subject, the background, or both at the same time.
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Export: The download format automatically matches the format of the uploaded original image, and can also be changed manually; the file is saved directly to the device with no watermark.
How to use
After opening the website, upload or drag an image into the editor. The maximum file size is 50MB, and JPEG, PNG, and WebP are supported. You can also paste an image URL to load it. After the AI quickly and automatically recognizes the subject, click Add Text to add a text layer, enter the text and choose the font, font size, color, alignment, and preset style, then adjust the text position by dragging or using the position slider, set letter spacing, rotation, blend mode, 3D depth and perspective, and text effects as needed, and use filters to adjust the subject or background. Once confirmed, click download to save it locally. All processing is completed within the browser and is not uploaded to a server.
Use cases
The use cases listed officially include: creating poster-like photo effects, YouTube thumbnails, Instagram Stories and posts, social media images, advertisements, presentations, etc. It is also often used as an alternative to Photoshop's text-behind effect.
Limitations and notes
Officially, the tool is said to be 100% free, require no registration, have no watermark, and have no usage restrictions. The entire processing is completed within the browser, and photos are not uploaded to a server. Uploaded files are a maximum of 50MB, and JPEG, PNG, and WebP are supported for input and output. The eyedropper tool is available only in Chrome and Edge; officially it is mentioned that it can be used on devices such as iPhone, iPad, and Android and on mainstream browsers, but no specific compatibility version details are given. The official page lists common questions about use for commercial projects, re-editing after saving a project, and so on, but the materials do not provide specific answers to these questions, and the relevant details are not yet available.
